Finding the Fourth Proportional to 10,411.04, 15,616.42 and 3,391.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,411.04 : 15,616.42 = 3,391.31 : x
2. Step 2: Convert to fraction form
   10,411.04/15,616.42 = 3,391.31/x
3. Step 3: Cross multiply
   10,411.04x = 15,616.42 × 3,391.31
4. Step 4: Simplify right side
   10,411.04x = 52,960,121.31
5. Step 5: Solve for x
   x = 52,960,121.31/10,411.04
6. Step 6: Final answer
   x = 5,086.92