Finding the Fourth Proportional to 82,388.52, 123,287.34 and 71,333.28

Step by Step Solution

1. Step 1: Write the proportion equation
   82,388.52 : 123,287.34 = 71,333.28 : x
2. Step 2: Convert to fraction form
   82,388.52/123,287.34 = 71,333.28/x
3. Step 3: Cross multiply
   82,388.52x = 123,287.34 × 71,333.28
4. Step 4: Simplify right side
   82,388.52x = 8,794,490,344.68
5. Step 5: Solve for x
   x = 8,794,490,344.68/82,388.52
6. Step 6: Final answer
   x = 106,744.12