Finding the Fourth Proportional to 6,601.28, 9,109.98 and 3,617.30

Step by Step Solution

1. Step 1: Write the proportion equation
   6,601.28 : 9,109.98 = 3,617.30 : x
2. Step 2: Convert to fraction form
   6,601.28/9,109.98 = 3,617.30/x
3. Step 3: Cross multiply
   6,601.28x = 9,109.98 × 3,617.30
4. Step 4: Simplify right side
   6,601.28x = 32,953,530.65
5. Step 5: Solve for x
   x = 32,953,530.65/6,601.28
6. Step 6: Final answer
   x = 4,991.99