Finding the Fourth Proportional to 5,521.02, 8,262.42 and 3,411.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,521.02 : 8,262.42 = 3,411.78 : x
2. Step 2: Convert to fraction form
   5,521.02/8,262.42 = 3,411.78/x
3. Step 3: Cross multiply
   5,521.02x = 8,262.42 × 3,411.78
4. Step 4: Simplify right side
   5,521.02x = 28,189,559.31
5. Step 5: Solve for x
   x = 28,189,559.31/5,521.02
6. Step 6: Final answer
   x = 5,105.86