Finding the Fourth Proportional to 5,665.82, 7,819.32 and 3,308.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,665.82 : 7,819.32 = 3,308.72 : x
2. Step 2: Convert to fraction form
   5,665.82/7,819.32 = 3,308.72/x
3. Step 3: Cross multiply
   5,665.82x = 7,819.32 × 3,308.72
4. Step 4: Simplify right side
   5,665.82x = 25,871,940.47
5. Step 5: Solve for x
   x = 25,871,940.47/5,665.82
6. Step 6: Final answer
   x = 4,566.32