Finding the Fourth Proportional to 11,168.30, 15,411.71 and 6,454.10

Step by Step Solution

1. Step 1: Write the proportion equation
   11,168.30 : 15,411.71 = 6,454.10 : x
2. Step 2: Convert to fraction form
   11,168.30/15,411.71 = 6,454.10/x
3. Step 3: Cross multiply
   11,168.30x = 15,411.71 × 6,454.10
4. Step 4: Simplify right side
   11,168.30x = 99,468,608.18
5. Step 5: Solve for x
   x = 99,468,608.18/11,168.30
6. Step 6: Final answer
   x = 8,906.34