Finding the Fourth Proportional to 5,826.27, 8,042.72 and 5,520.90

Step by Step Solution

1. Step 1: Write the proportion equation
   5,826.27 : 8,042.72 = 5,520.90 : x
2. Step 2: Convert to fraction form
   5,826.27/8,042.72 = 5,520.90/x
3. Step 3: Cross multiply
   5,826.27x = 8,042.72 × 5,520.90
4. Step 4: Simplify right side
   5,826.27x = 44,403,025.24
5. Step 5: Solve for x
   x = 44,403,025.24/5,826.27
6. Step 6: Final answer
   x = 7,621.18