Finding the Fourth Proportional to 309,807.72, 464,701.86 and 88,191.72

Step by Step Solution

1. Step 1: Write the proportion equation
   309,807.72 : 464,701.86 = 88,191.72 : x
2. Step 2: Convert to fraction form
   309,807.72/464,701.86 = 88,191.72/x
3. Step 3: Cross multiply
   309,807.72x = 464,701.86 × 88,191.72
4. Step 4: Simplify right side
   309,807.72x = 40,982,856,320.60
5. Step 5: Solve for x
   x = 40,982,856,320.60/309,807.72
6. Step 6: Final answer
   x = 132,284.81