Finding the Fourth Proportional to 10,429.32, 14,414.96 and 9,225.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,429.32 : 14,414.96 = 9,225.78 : x
2. Step 2: Convert to fraction form
   10,429.32/14,414.96 = 9,225.78/x
3. Step 3: Cross multiply
   10,429.32x = 14,414.96 × 9,225.78
4. Step 4: Simplify right side
   10,429.32x = 132,989,249.67
5. Step 5: Solve for x
   x = 132,989,249.67/10,429.32
6. Step 6: Final answer
   x = 12,751.48