Finding the Fourth Proportional to 31,006.38, 42,787.89 and 17,578.86

Step by Step Solution

1. Step 1: Write the proportion equation
   31,006.38 : 42,787.89 = 17,578.86 : x
2. Step 2: Convert to fraction form
   31,006.38/42,787.89 = 17,578.86/x
3. Step 3: Cross multiply
   31,006.38x = 42,787.89 × 17,578.86
4. Step 4: Simplify right side
   31,006.38x = 752,162,328.01
5. Step 5: Solve for x
   x = 752,162,328.01/31,006.38
6. Step 6: Final answer
   x = 24,258.31