Finding the Fourth Proportional to 16,531.56, 22,815.42 and 9,459

Step by Step Solution

1. Step 1: Write the proportion equation
   16,531.56 : 22,815.42 = 9,459 : x
2. Step 2: Convert to fraction form
   16,531.56/22,815.42 = 9,459/x
3. Step 3: Cross multiply
   16,531.56x = 22,815.42 × 9,459
4. Step 4: Simplify right side
   16,531.56x = 215,811,057.78
5. Step 5: Solve for x
   x = 215,811,057.78/16,531.56
6. Step 6: Final answer
   x = 13,054.49