Finding the Fourth Proportional to 16,229.69, 22,396.56 and 9,155.55

Step by Step Solution

1. Step 1: Write the proportion equation
   16,229.69 : 22,396.56 = 9,155.55 : x
2. Step 2: Convert to fraction form
   16,229.69/22,396.56 = 9,155.55/x
3. Step 3: Cross multiply
   16,229.69x = 22,396.56 × 9,155.55
4. Step 4: Simplify right side
   16,229.69x = 205,052,824.91
5. Step 5: Solve for x
   x = 205,052,824.91/16,229.69
6. Step 6: Final answer
   x = 12,634.43