Step 1:
The first step to converting 171519.3903958 to a fraction is to re-write 171519.3903958 in the form p/q where p and q are both positive integers. To start with, 171519.3903958 can be written as simply 171519.3903958/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 171519.3903958, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 171519.3903958/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 171519.3903958/1 each by 10000000:
Step 3:
Now the last step is to simplify the fraction (if possible) by finding similar factors and cancelling them out, which leads to the following answer for 171519.3903958 as a fraction:
343039/2 / 1