Finding the Fourth Proportional to 5,308.65, 7,320.24 and 3,958.16

Step by Step Solution

1. Step 1: Write the proportion equation
   5,308.65 : 7,320.24 = 3,958.16 : x
2. Step 2: Convert to fraction form
   5,308.65/7,320.24 = 3,958.16/x
3. Step 3: Cross multiply
   5,308.65x = 7,320.24 × 3,958.16
4. Step 4: Simplify right side
   5,308.65x = 28,974,644.56
5. Step 5: Solve for x
   x = 28,974,644.56/5,308.65
6. Step 6: Final answer
   x = 5,458.01