Finding the Fourth Proportional to 7,760.87, 10,722.54 and 5,413.49

Step by Step Solution

1. Step 1: Write the proportion equation
   7,760.87 : 10,722.54 = 5,413.49 : x
2. Step 2: Convert to fraction form
   7,760.87/10,722.54 = 5,413.49/x
3. Step 3: Cross multiply
   7,760.87x = 10,722.54 × 5,413.49
4. Step 4: Simplify right side
   7,760.87x = 58,046,309.45
5. Step 5: Solve for x
   x = 58,046,309.45/7,760.87
6. Step 6: Final answer
   x = 7,479.36