Finding the Fourth Proportional to 16,520.86, 24,770.76 and 9,130.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,520.86 : 24,770.76 = 9,130.42 : x
2. Step 2: Convert to fraction form
   16,520.86/24,770.76 = 9,130.42/x
3. Step 3: Cross multiply
   16,520.86x = 24,770.76 × 9,130.42
4. Step 4: Simplify right side
   16,520.86x = 226,167,442.52
5. Step 5: Solve for x
   x = 226,167,442.52/16,520.86
6. Step 6: Final answer
   x = 13,689.81