Finding the Fourth Proportional to 16,331.12, 24,487.72 and 7,561.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,331.12 : 24,487.72 = 7,561.20 : x
2. Step 2: Convert to fraction form
   16,331.12/24,487.72 = 7,561.20/x
3. Step 3: Cross multiply
   16,331.12x = 24,487.72 × 7,561.20
4. Step 4: Simplify right side
   16,331.12x = 185,156,548.46
5. Step 5: Solve for x
   x = 185,156,548.46/16,331.12
6. Step 6: Final answer
   x = 11,337.65