Step 1:
The first step to converting 86441.4872 to a fraction is to re-write 86441.4872 in the form p/q where p and q are both positive integers. To start with, 86441.4872 can be written as simply 86441.4872/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 86441.4872, which in this case is 4. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 86441.4872/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 86441.4872/1 each by 10000:
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 86441.4872 as a fraction:
172883/2 / 1