Finding the Fourth Proportional to 16,520.72, 22,793 and 9,442.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,520.72 : 22,793 = 9,442.10 : x
2. Step 2: Convert to fraction form
   16,520.72/22,793 = 9,442.10/x
3. Step 3: Cross multiply
   16,520.72x = 22,793 × 9,442.10
4. Step 4: Simplify right side
   16,520.72x = 215,213,785.30
5. Step 5: Solve for x
   x = 215,213,785.30/16,520.72
6. Step 6: Final answer
   x = 13,026.90