Finding the Fourth Proportional to 7,760.68, 10,722.27 and 5,413.30

Step by Step Solution

1. Step 1: Write the proportion equation
   7,760.68 : 10,722.27 = 5,413.30 : x
2. Step 2: Convert to fraction form
   7,760.68/10,722.27 = 5,413.30/x
3. Step 3: Cross multiply
   7,760.68x = 10,722.27 × 5,413.30
4. Step 4: Simplify right side
   7,760.68x = 58,042,857.69
5. Step 5: Solve for x
   x = 58,042,857.69/7,760.68
6. Step 6: Final answer
   x = 7,479.10