Finding the Fourth Proportional to 6,601.43, 9,109.89 and 3,617.09

Step by Step Solution

1. Step 1: Write the proportion equation
   6,601.43 : 9,109.89 = 3,617.09 : x
2. Step 2: Convert to fraction form
   6,601.43/9,109.89 = 3,617.09/x
3. Step 3: Cross multiply
   6,601.43x = 9,109.89 × 3,617.09
4. Step 4: Simplify right side
   6,601.43x = 32,951,292.02
5. Step 5: Solve for x
   x = 32,951,292.02/6,601.43
6. Step 6: Final answer
   x = 4,991.54