Finding the Fourth Proportional to 82,456.74, 123,682.68 and 71,330.58

Step by Step Solution

1. Step 1: Write the proportion equation
   82,456.74 : 123,682.68 = 71,330.58 : x
2. Step 2: Convert to fraction form
   82,456.74/123,682.68 = 71,330.58/x
3. Step 3: Cross multiply
   82,456.74x = 123,682.68 × 71,330.58
4. Step 4: Simplify right side
   82,456.74x = 8,822,357,300.35
5. Step 5: Solve for x
   x = 8,822,357,300.35/82,456.74
6. Step 6: Final answer
   x = 106,993.77