Finding the Fourth Proportional to 5,665.24, 7,817.46 and 3,308.75

Step by Step Solution

1. Step 1: Write the proportion equation
   5,665.24 : 7,817.46 = 3,308.75 : x
2. Step 2: Convert to fraction form
   5,665.24/7,817.46 = 3,308.75/x
3. Step 3: Cross multiply
   5,665.24x = 7,817.46 × 3,308.75
4. Step 4: Simplify right side
   5,665.24x = 25,866,020.78
5. Step 5: Solve for x
   x = 25,866,020.78/5,665.24
6. Step 6: Final answer
   x = 4,565.75