Finding the Fourth Proportional to 5,397.13, 7,440.42 and 5,323.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,397.13 : 7,440.42 = 5,323.15 : x
2. Step 2: Convert to fraction form
   5,397.13/7,440.42 = 5,323.15/x
3. Step 3: Cross multiply
   5,397.13x = 7,440.42 × 5,323.15
4. Step 4: Simplify right side
   5,397.13x = 39,606,471.72
5. Step 5: Solve for x
   x = 39,606,471.72/5,397.13
6. Step 6: Final answer
   x = 7,338.43