Finding the Fourth Proportional to 12,833.28, 17,700.12 and 8,861.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,833.28 : 17,700.12 = 8,861.04 : x
2. Step 2: Convert to fraction form
   12,833.28/17,700.12 = 8,861.04/x
3. Step 3: Cross multiply
   12,833.28x = 17,700.12 × 8,861.04
4. Step 4: Simplify right side
   12,833.28x = 156,841,471.32
5. Step 5: Solve for x
   x = 156,841,471.32/12,833.28
6. Step 6: Final answer
   x = 12,221.46