Finding the Fourth Proportional to 10,785.59, 16,176.99 and 8,016.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,785.59 : 16,176.99 = 8,016.30 : x
2. Step 2: Convert to fraction form
   10,785.59/16,176.99 = 8,016.30/x
3. Step 3: Cross multiply
   10,785.59x = 16,176.99 × 8,016.30
4. Step 4: Simplify right side
   10,785.59x = 129,679,604.94
5. Step 5: Solve for x
   x = 129,679,604.94/10,785.59
6. Step 6: Final answer
   x = 12,023.42