Finding the Fourth Proportional to 150,499.80, 207,691.72 and 82,516.62

Step by Step Solution

1. Step 1: Write the proportion equation
   150,499.80 : 207,691.72 = 82,516.62 : x
2. Step 2: Convert to fraction form
   150,499.80/207,691.72 = 82,516.62/x
3. Step 3: Cross multiply
   150,499.80x = 207,691.72 × 82,516.62
4. Step 4: Simplify right side
   150,499.80x = 17,138,018,736.39
5. Step 5: Solve for x
   x = 17,138,018,736.39/150,499.80
6. Step 6: Final answer
   x = 113,874.03