Finding the Fourth Proportional to 11,404.16, 15,731.52 and 8,254.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,404.16 : 15,731.52 = 8,254.88 : x
2. Step 2: Convert to fraction form
   11,404.16/15,731.52 = 8,254.88/x
3. Step 3: Cross multiply
   11,404.16x = 15,731.52 × 8,254.88
4. Step 4: Simplify right side
   11,404.16x = 129,861,809.82
5. Step 5: Solve for x
   x = 129,861,809.82/11,404.16
6. Step 6: Final answer
   x = 11,387.23