Step 1:
The first step to converting 20592.187981573 to a fraction is to re-write 20592.187981573 in the form p/q where p and q are both positive integers. To start with, 20592.187981573 can be written as simply 20592.187981573/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 20592.187981573, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 20592.187981573/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 20592.187981573/1 each by 1000000000:
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 20592.187981573 as a fraction:
102961/5 / 1