Finding the Fourth Proportional to 16,622.72, 22,939.17 and 9,069.14

Step by Step Solution

1. Step 1: Write the proportion equation
   16,622.72 : 22,939.17 = 9,069.14 : x
2. Step 2: Convert to fraction form
   16,622.72/22,939.17 = 9,069.14/x
3. Step 3: Cross multiply
   16,622.72x = 22,939.17 × 9,069.14
4. Step 4: Simplify right side
   16,622.72x = 208,038,544.21
5. Step 5: Solve for x
   x = 208,038,544.21/16,622.72
6. Step 6: Final answer
   x = 12,515.31