Finding the Fourth Proportional to 116,728.72, 175,147.78 and 57,532.10

Step by Step Solution

1. Step 1: Write the proportion equation
   116,728.72 : 175,147.78 = 57,532.10 : x
2. Step 2: Convert to fraction form
   116,728.72/175,147.78 = 57,532.10/x
3. Step 3: Cross multiply
   116,728.72x = 175,147.78 × 57,532.10
4. Step 4: Simplify right side
   116,728.72x = 10,076,619,593.74
5. Step 5: Solve for x
   x = 10,076,619,593.74/116,728.72
6. Step 6: Final answer
   x = 86,325.11