Finding the Fourth Proportional to 16,320.80, 22,522.62 and 9,150.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,320.80 : 22,522.62 = 9,150.72 : x
2. Step 2: Convert to fraction form
   16,320.80/22,522.62 = 9,150.72/x
3. Step 3: Cross multiply
   16,320.80x = 22,522.62 × 9,150.72
4. Step 4: Simplify right side
   16,320.80x = 206,098,189.29
5. Step 5: Solve for x
   x = 206,098,189.29/16,320.80
6. Step 6: Final answer
   x = 12,627.95