Finding the Fourth Proportional to 16,662.57, 22,994.29 and 9,108.90

Step by Step Solution

1. Step 1: Write the proportion equation
   16,662.57 : 22,994.29 = 9,108.90 : x
2. Step 2: Convert to fraction form
   16,662.57/22,994.29 = 9,108.90/x
3. Step 3: Cross multiply
   16,662.57x = 22,994.29 × 9,108.90
4. Step 4: Simplify right side
   16,662.57x = 209,452,688.18
5. Step 5: Solve for x
   x = 209,452,688.18/16,662.57
6. Step 6: Final answer
   x = 12,570.25