Finding the Fourth Proportional to 23,152.97, 31,951.04 and 12,542.78

Step by Step Solution

1. Step 1: Write the proportion equation
   23,152.97 : 31,951.04 = 12,542.78 : x
2. Step 2: Convert to fraction form
   23,152.97/31,951.04 = 12,542.78/x
3. Step 3: Cross multiply
   23,152.97x = 31,951.04 × 12,542.78
4. Step 4: Simplify right side
   23,152.97x = 400,754,643.02
5. Step 5: Solve for x
   x = 400,754,643.02/23,152.97
6. Step 6: Final answer
   x = 17,309.00