How can I read the following raw data?

[Jonathanzz]

data test10(keep=HSI);
infile datalines dlm=" ";
input a b c HSI e;
format HSI comma8.;
datalines;
2017-04-27 24,520.09 24,717.44 24,455.12 24,698.48 0.00
2017-04-26 24,576.08 24,637.85 24,515.23 24,578.43 0.00
2017-04-25 24,455.94 24,455.94 24,201.91 24,455.94 0.00
2017-04-24 24,139.48 24,206.44 23,958.18 24,139.48 0.00
2017-04-21 24,132.06 24,190.14 23,991.87 24,042.02 0.00
2017-04-20 23,945.67 24,058.87 23,827.07 24,056.98 0.00
2017-04-19 23,768.68 23,893.14 23,723.87 23,825.88 0.00
2017-04-18 24,077.50 24,276.31 23,892.59 23,924.54 0.00
2017-04-13 24,203.80 24,378.38 24,158.16 24,261.66 0.00
2017-04-12 24,050.75 24,313.50 23,994.13 24,313.50 0.00
2017-04-11 24,308.04 24,318.15 24,007.85 24,088.46 0.00
2017-04-10 24,271.48 24,314.66 24,215.54 24,262.18 0.00
2017-04-07 24,169.88 24,268.39 23,982.40 24,267.30 0.00
2017-04-06 24,333.23 24,381.63 24,210.69 24,273.72 0.00
2017-04-05 24,326.30 24,400.80 24,166.01 24,400.80 0.00
2017-04-03 24,261.48 24,261.48 24,162.55 24,261.48 0.00
2017-03-31 24,235.70 24,329.98 24,105.38 24,111.59 0.00
2017-03-30 24,301.09 24,431.12 24,250.40 24,301.09 0.00
2017-03-29 24,392.05 24,470.66 24,330.70 24,392.05 0.00
2017-03-28 24,322.68 24,360.00 24,274.52 24,345.87 0.00
2017-03-27 24,378.03 24,434.90 24,138.78 24,193.70 0.00
2017-03-24 24,358.27 24,420.77 24,263.17 24,358.27 0.00
2017-03-23 24,393.66 24,466.73 24,271.26 24,327.70 0.00
2017-03-22 24,332.14 24,380.42 24,207.10 24,320.41 0.00
2017-03-21 24,647.67 24,656.65 24,500.35 24,593.12 0.00
2017-03-20 24,340.66 24,501.99 24,312.57 24,501.99 0.00
2017-03-17 24,288.59 24,385.81 24,237.97 24,309.93 0.00
2017-03-16 24,071.60 24,288.28 24,003.75 24,288.28 0.00
2017-03-15 23,714.25 23,842.81 23,645.51 23,792.85 0.00
2017-03-14 23,860.33 23,918.12 23,768.34 23,827.95 0.00
;
run;

I want to extract data in the fourth column (i.e. 24,698.48 to 23,827.95).

I tried to use dlm=" " to specific only Blank will be the delimiter, but I guess there is a comma between the number so that the program stop running. Can anyone help me to do this?

[RW9 · Accepted solution]

Informats are your friend:

data test10 (keep=hsi);
  infile datalines dlm=" ";
  informat a yymmdd10.
           b c hsi e comma9.;
  input a b c hsi e;
  format hsi comma8.2;
datalines;
2017-04-27 24,520.09 24,717.44 24,455.12 24,698.48 0.00
2017-04-26 24,576.08 24,637.85 24,515.23 24,578.43 0.00
2017-04-25 24,455.94 24,455.94 24,201.91 24,455.94 0.00
;
run;