Finding the Fourth Proportional to 6,624.27, 9,141.39 and 3,640.05

Step by Step Solution

1. Step 1: Write the proportion equation
   6,624.27 : 9,141.39 = 3,640.05 : x
2. Step 2: Convert to fraction form
   6,624.27/9,141.39 = 3,640.05/x
3. Step 3: Cross multiply
   6,624.27x = 9,141.39 × 3,640.05
4. Step 4: Simplify right side
   6,624.27x = 33,275,116.67
5. Step 5: Solve for x
   x = 33,275,116.67/6,624.27
6. Step 6: Final answer
   x = 5,023.21