Finding the Fourth Proportional to 16,622.79, 22,939 and 9,069.14

Step by Step Solution

1. Step 1: Write the proportion equation
   16,622.79 : 22,939 = 9,069.14 : x
2. Step 2: Convert to fraction form
   16,622.79/22,939 = 9,069.14/x
3. Step 3: Cross multiply
   16,622.79x = 22,939 × 9,069.14
4. Step 4: Simplify right side
   16,622.79x = 208,037,002.46
5. Step 5: Solve for x
   x = 208,037,002.46/16,622.79
6. Step 6: Final answer
   x = 12,515.17