Finding the Fourth Proportional to 12,862.31, 17,752.27 and 7,557.13

Step by Step Solution

1. Step 1: Write the proportion equation
   12,862.31 : 17,752.27 = 7,557.13 : x
2. Step 2: Convert to fraction form
   12,862.31/17,752.27 = 7,557.13/x
3. Step 3: Cross multiply
   12,862.31x = 17,752.27 × 7,557.13
4. Step 4: Simplify right side
   12,862.31x = 134,156,148.91
5. Step 5: Solve for x
   x = 134,156,148.91/12,862.31
6. Step 6: Final answer
   x = 10,430.17