Finding the Fourth Proportional to 82,711.98, 123,998.58 and 68,632.56

Step by Step Solution

1. Step 1: Write the proportion equation
   82,711.98 : 123,998.58 = 68,632.56 : x
2. Step 2: Convert to fraction form
   82,711.98/123,998.58 = 68,632.56/x
3. Step 3: Cross multiply
   82,711.98x = 123,998.58 × 68,632.56
4. Step 4: Simplify right side
   82,711.98x = 8,510,339,981.76
5. Step 5: Solve for x
   x = 8,510,339,981.76/82,711.98
6. Step 6: Final answer
   x = 102,891.26