Finding the Fourth Proportional to 5,216.20, 7,821.82 and 3,025.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,216.20 : 7,821.82 = 3,025.56 : x
2. Step 2: Convert to fraction form
   5,216.20/7,821.82 = 3,025.56/x
3. Step 3: Cross multiply
   5,216.20x = 7,821.82 × 3,025.56
4. Step 4: Simplify right side
   5,216.20x = 23,665,385.72
5. Step 5: Solve for x
   x = 23,665,385.72/5,216.20
6. Step 6: Final answer
   x = 4,536.90