Finding the Fourth Proportional to 12,081.24, 16,688.16 and 9,461.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,081.24 : 16,688.16 = 9,461.52 : x
2. Step 2: Convert to fraction form
   12,081.24/16,688.16 = 9,461.52/x
3. Step 3: Cross multiply
   12,081.24x = 16,688.16 × 9,461.52
4. Step 4: Simplify right side
   12,081.24x = 157,895,359.60
5. Step 5: Solve for x
   x = 157,895,359.60/12,081.24
6. Step 6: Final answer
   x = 13,069.47