Step 1:
The first step to converting 17212.122173936 to a fraction is to re-write 17212.122173936 in the form p/q where p and q are both positive integers. To start with, 17212.122173936 can be written as simply 17212.122173936/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 17212.122173936, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 17212.122173936/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 17212.122173936/1 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 17212.122173936 as a fraction:
137697/8 / 1