Finding the Fourth Proportional to 6,643.35, 9,168.12 and 3,659.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,643.35 : 9,168.12 = 3,659.31 : x
2. Step 2: Convert to fraction form
   6,643.35/9,168.12 = 3,659.31/x
3. Step 3: Cross multiply
   6,643.35x = 9,168.12 × 3,659.31
4. Step 4: Simplify right side
   6,643.35x = 33,548,993.20
5. Step 5: Solve for x
   x = 33,548,993.20/6,643.35
6. Step 6: Final answer
   x = 5,050.01