Finding the Fourth Proportional to 10,411.62, 15,618.27 and 3,391.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,411.62 : 15,618.27 = 3,391.50 : x
2. Step 2: Convert to fraction form
   10,411.62/15,618.27 = 3,391.50/x
3. Step 3: Cross multiply
   10,411.62x = 15,618.27 × 3,391.50
4. Step 4: Simplify right side
   10,411.62x = 52,969,362.71
5. Step 5: Solve for x
   x = 52,969,362.71/10,411.62
6. Step 6: Final answer
   x = 5,087.52