Finding the Fourth Proportional to 117,191.47, 175,641 and 57,170.47

Step by Step Solution

1. Step 1: Write the proportion equation
   117,191.47 : 175,641 = 57,170.47 : x
2. Step 2: Convert to fraction form
   117,191.47/175,641 = 57,170.47/x
3. Step 3: Cross multiply
   117,191.47x = 175,641 × 57,170.47
4. Step 4: Simplify right side
   117,191.47x = 10,041,478,521.27
5. Step 5: Solve for x
   x = 10,041,478,521.27/117,191.47
6. Step 6: Final answer
   x = 85,684.38