Finding the Fourth Proportional to 16,234.38, 22,403.88 and 9,520.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,234.38 : 22,403.88 = 9,520.56 : x
2. Step 2: Convert to fraction form
   16,234.38/22,403.88 = 9,520.56/x
3. Step 3: Cross multiply
   16,234.38x = 22,403.88 × 9,520.56
4. Step 4: Simplify right side
   16,234.38x = 213,297,483.77
5. Step 5: Solve for x
   x = 213,297,483.77/16,234.38
6. Step 6: Final answer
   x = 13,138.63