Finding the Fourth Proportional to 5,826.57, 8,081.87 and 5,616.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,826.57 : 8,081.87 = 5,616.42 : x
2. Step 2: Convert to fraction form
   5,826.57/8,081.87 = 5,616.42/x
3. Step 3: Cross multiply
   5,826.57x = 8,081.87 × 5,616.42
4. Step 4: Simplify right side
   5,826.57x = 45,391,163.38
5. Step 5: Solve for x
   x = 45,391,163.38/5,826.57
6. Step 6: Final answer
   x = 7,790.37