Finding the Fourth Proportional to 5,711.56, 8,550.81 and 3,513.61

Step by Step Solution

1. Step 1: Write the proportion equation
   5,711.56 : 8,550.81 = 3,513.61 : x
2. Step 2: Convert to fraction form
   5,711.56/8,550.81 = 3,513.61/x
3. Step 3: Cross multiply
   5,711.56x = 8,550.81 × 3,513.61
4. Step 4: Simplify right side
   5,711.56x = 30,044,211.52
5. Step 5: Solve for x
   x = 30,044,211.52/5,711.56
6. Step 6: Final answer
   x = 5,260.25