How to decrypt hex to decimal?

Hello every body!
I have a hex file save multy objects (call is X).X has fieds:name,month,year and 4 values.
when some one write file, you can see image below. X save in total 3 row,
+First row save name, month,day,year...
+Second row save 4 values (data type is real)
+three row is 0.
I can know first row and three row, but i can't read 4 values of second row.
the bold row is 103.15,103.12,94.66 and 30.06
but when i convert it from hex to decimal then result is incorrect.
I must decrypt to get this values. but i can't know writer how to created it?
what mean of this 4 values?
you can see my picture:
picture

Tags: C#, Delphi