Finding the Fourth Proportional to 16,630.72, 22,948.76 and 9,178.24

Step by Step Solution

1. Step 1: Write the proportion equation
   16,630.72 : 22,948.76 = 9,178.24 : x
2. Step 2: Convert to fraction form
   16,630.72/22,948.76 = 9,178.24/x
3. Step 3: Cross multiply
   16,630.72x = 22,948.76 × 9,178.24
4. Step 4: Simplify right side
   16,630.72x = 210,629,226.98
5. Step 5: Solve for x
   x = 210,629,226.98/16,630.72
6. Step 6: Final answer
   x = 12,665.07