Finding the Fourth Proportional to 16,434.72, 24,640.56 and 8,104.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,434.72 : 24,640.56 = 8,104.56 : x
2. Step 2: Convert to fraction form
   16,434.72/24,640.56 = 8,104.56/x
3. Step 3: Cross multiply
   16,434.72x = 24,640.56 × 8,104.56
4. Step 4: Simplify right side
   16,434.72x = 199,700,896.95
5. Step 5: Solve for x
   x = 199,700,896.95/16,434.72
6. Step 6: Final answer
   x = 12,151.16