Finding the Fourth Proportional to 6,601.38, 9,109.53 and 3,616.62

Step by Step Solution

1. Step 1: Write the proportion equation
   6,601.38 : 9,109.53 = 3,616.62 : x
2. Step 2: Convert to fraction form
   6,601.38/9,109.53 = 3,616.62/x
3. Step 3: Cross multiply
   6,601.38x = 9,109.53 × 3,616.62
4. Step 4: Simplify right side
   6,601.38x = 32,945,708.39
5. Step 5: Solve for x
   x = 32,945,708.39/6,601.38
6. Step 6: Final answer
   x = 4,990.73