Finding the Fourth Proportional to 12,711.57, 17,541.45 and 7,046.40

Step by Step Solution

1. Step 1: Write the proportion equation
   12,711.57 : 17,541.45 = 7,046.40 : x
2. Step 2: Convert to fraction form
   12,711.57/17,541.45 = 7,046.40/x
3. Step 3: Cross multiply
   12,711.57x = 17,541.45 × 7,046.40
4. Step 4: Simplify right side
   12,711.57x = 123,604,073.28
5. Step 5: Solve for x
   x = 123,604,073.28/12,711.57
6. Step 6: Final answer
   x = 9,723.75