Finding the Fourth Proportional to 6,604.28, 9,113.98 and 3,620.05

Step by Step Solution

1. Step 1: Write the proportion equation
   6,604.28 : 9,113.98 = 3,620.05 : x
2. Step 2: Convert to fraction form
   6,604.28/9,113.98 = 3,620.05/x
3. Step 3: Cross multiply
   6,604.28x = 9,113.98 × 3,620.05
4. Step 4: Simplify right side
   6,604.28x = 32,993,045.20
5. Step 5: Solve for x
   x = 32,993,045.20/6,604.28
6. Step 6: Final answer
   x = 4,995.71