Finding the Fourth Proportional to 16,227.72, 22,391.22 and 9,154.44

Step by Step Solution

1. Step 1: Write the proportion equation
   16,227.72 : 22,391.22 = 9,154.44 : x
2. Step 2: Convert to fraction form
   16,227.72/22,391.22 = 9,154.44/x
3. Step 3: Cross multiply
   16,227.72x = 22,391.22 × 9,154.44
4. Step 4: Simplify right side
   16,227.72x = 204,979,080.02
5. Step 5: Solve for x
   x = 204,979,080.02/16,227.72
6. Step 6: Final answer
   x = 12,631.42