Finding the Fourth Proportional to 82,283.16, 123,414.96 and 21,489.42

Step by Step Solution

1. Step 1: Write the proportion equation
   82,283.16 : 123,414.96 = 21,489.42 : x
2. Step 2: Convert to fraction form
   82,283.16/123,414.96 = 21,489.42/x
3. Step 3: Cross multiply
   82,283.16x = 123,414.96 × 21,489.42
4. Step 4: Simplify right side
   82,283.16x = 2,652,115,909.72
5. Step 5: Solve for x
   x = 2,652,115,909.72/82,283.16
6. Step 6: Final answer
   x = 32,231.58