Finding the Fourth Proportional to 7,292.16, 10,912.32 and 5,339.52

Step by Step Solution

1. Step 1: Write the proportion equation
   7,292.16 : 10,912.32 = 5,339.52 : x
2. Step 2: Convert to fraction form
   7,292.16/10,912.32 = 5,339.52/x
3. Step 3: Cross multiply
   7,292.16x = 10,912.32 × 5,339.52
4. Step 4: Simplify right side
   7,292.16x = 58,266,550.89
5. Step 5: Solve for x
   x = 58,266,550.89/7,292.16
6. Step 6: Final answer
   x = 7,990.30