Finding the Fourth Proportional to 16,434.72, 22,680.48 and 8,982.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,434.72 : 22,680.48 = 8,982.72 : x
2. Step 2: Convert to fraction form
   16,434.72/22,680.48 = 8,982.72/x
3. Step 3: Cross multiply
   16,434.72x = 22,680.48 × 8,982.72
4. Step 4: Simplify right side
   16,434.72x = 203,732,401.31
5. Step 5: Solve for x
   x = 203,732,401.31/16,434.72
6. Step 6: Final answer
   x = 12,396.46