Finding the Fourth Proportional to 9,008.25, 12,429.91 and 8,282.44

Step by Step Solution

1. Step 1: Write the proportion equation
   9,008.25 : 12,429.91 = 8,282.44 : x
2. Step 2: Convert to fraction form
   9,008.25/12,429.91 = 8,282.44/x
3. Step 3: Cross multiply
   9,008.25x = 12,429.91 × 8,282.44
4. Step 4: Simplify right side
   9,008.25x = 102,949,983.78
5. Step 5: Solve for x
   x = 102,949,983.78/9,008.25
6. Step 6: Final answer
   x = 11,428.41