Finding the Fourth Proportional to 16,354.50, 22,572.15 and 9,639.73

Step by Step Solution

1. Step 1: Write the proportion equation
   16,354.50 : 22,572.15 = 9,639.73 : x
2. Step 2: Convert to fraction form
   16,354.50/22,572.15 = 9,639.73/x
3. Step 3: Cross multiply
   16,354.50x = 22,572.15 × 9,639.73
4. Step 4: Simplify right side
   16,354.50x = 217,589,431.52
5. Step 5: Solve for x
   x = 217,589,431.52/16,354.50
6. Step 6: Final answer
   x = 13,304.56