Finding the Fourth Proportional to 6,608.40, 9,908.17 and 3,485.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,608.40 : 9,908.17 = 3,485.10 : x
2. Step 2: Convert to fraction form
   6,608.40/9,908.17 = 3,485.10/x
3. Step 3: Cross multiply
   6,608.40x = 9,908.17 × 3,485.10
4. Step 4: Simplify right side
   6,608.40x = 34,530,963.27
5. Step 5: Solve for x
   x = 34,530,963.27/6,608.40
6. Step 6: Final answer
   x = 5,225.31