Finding the Fourth Proportional to 10,724.87, 16,086.51 and 3,609.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,724.87 : 16,086.51 = 3,609.15 : x
2. Step 2: Convert to fraction form
   10,724.87/16,086.51 = 3,609.15/x
3. Step 3: Cross multiply
   10,724.87x = 16,086.51 × 3,609.15
4. Step 4: Simplify right side
   10,724.87x = 58,058,627.57
5. Step 5: Solve for x
   x = 58,058,627.57/10,724.87
6. Step 6: Final answer
   x = 5,413.46