Finding the Fourth Proportional to 132,171.88, 182,397.32 and 71,742.50

Step by Step Solution

1. Step 1: Write the proportion equation
   132,171.88 : 182,397.32 = 71,742.50 : x
2. Step 2: Convert to fraction form
   132,171.88/182,397.32 = 71,742.50/x
3. Step 3: Cross multiply
   132,171.88x = 182,397.32 × 71,742.50
4. Step 4: Simplify right side
   132,171.88x = 13,085,639,730.10
5. Step 5: Solve for x
   x = 13,085,639,730.10/132,171.88
6. Step 6: Final answer
   x = 99,004.72