Finding the Fourth Proportional to 82,385.52, 123,282.84 and 71,330.28

Step by Step Solution

1. Step 1: Write the proportion equation
   82,385.52 : 123,282.84 = 71,330.28 : x
2. Step 2: Convert to fraction form
   82,385.52/123,282.84 = 71,330.28/x
3. Step 3: Cross multiply
   82,385.52x = 123,282.84 × 71,330.28
4. Step 4: Simplify right side
   82,385.52x = 8,793,799,496.40
5. Step 5: Solve for x
   x = 8,793,799,496.40/82,385.52
6. Step 6: Final answer
   x = 106,739.62