Finding the Fourth Proportional to 42,689.32, 58,916.58 and 24,780.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,689.32 : 58,916.58 = 24,780.48 : x
2. Step 2: Convert to fraction form
   42,689.32/58,916.58 = 24,780.48/x
3. Step 3: Cross multiply
   42,689.32x = 58,916.58 × 24,780.48
4. Step 4: Simplify right side
   42,689.32x = 1,459,981,132.36
5. Step 5: Solve for x
   x = 1,459,981,132.36/42,689.32
6. Step 6: Final answer
   x = 34,200.15