Finding the Fourth Proportional to 6,648.82, 9,175.71 and 3,664.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,648.82 : 9,175.71 = 3,664.78 : x
2. Step 2: Convert to fraction form
   6,648.82/9,175.71 = 3,664.78/x
3. Step 3: Cross multiply
   6,648.82x = 9,175.71 × 3,664.78
4. Step 4: Simplify right side
   6,648.82x = 33,626,958.49
5. Step 5: Solve for x
   x = 33,626,958.49/6,648.82
6. Step 6: Final answer
   x = 5,057.58