Finding the Fourth Proportional to 31,007.10, 42,792.75 and 17,578.98

Step by Step Solution

1. Step 1: Write the proportion equation
   31,007.10 : 42,792.75 = 17,578.98 : x
2. Step 2: Convert to fraction form
   31,007.10/42,792.75 = 17,578.98/x
3. Step 3: Cross multiply
   31,007.10x = 42,792.75 × 17,578.98
4. Step 4: Simplify right side
   31,007.10x = 752,252,896.40
5. Step 5: Solve for x
   x = 752,252,896.40/31,007.10
6. Step 6: Final answer
   x = 24,260.67