Finding the Fourth Proportional to 8,057.03, 12,078.25 and 2,861.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,057.03 : 12,078.25 = 2,861.69 : x
2. Step 2: Convert to fraction form
   8,057.03/12,078.25 = 2,861.69/x
3. Step 3: Cross multiply
   8,057.03x = 12,078.25 × 2,861.69
4. Step 4: Simplify right side
   8,057.03x = 34,564,139.70
5. Step 5: Solve for x
   x = 34,564,139.70/8,057.03
6. Step 6: Final answer
   x = 4,289.94