Finding the Fourth Proportional to 82,771.50, 123,861.86 and 71,716.08

Step by Step Solution

1. Step 1: Write the proportion equation
   82,771.50 : 123,861.86 = 71,716.08 : x
2. Step 2: Convert to fraction form
   82,771.50/123,861.86 = 71,716.08/x
3. Step 3: Cross multiply
   82,771.50x = 123,861.86 × 71,716.08
4. Step 4: Simplify right side
   82,771.50x = 8,882,887,060.71
5. Step 5: Solve for x
   x = 8,882,887,060.71/82,771.50
6. Step 6: Final answer
   x = 107,318.18