Finding the Fourth Proportional to 6,340.29, 8,749.38 and 3,507.61

Step by Step Solution

1. Step 1: Write the proportion equation
   6,340.29 : 8,749.38 = 3,507.61 : x
2. Step 2: Convert to fraction form
   6,340.29/8,749.38 = 3,507.61/x
3. Step 3: Cross multiply
   6,340.29x = 8,749.38 × 3,507.61
4. Step 4: Simplify right side
   6,340.29x = 30,689,412.78
5. Step 5: Solve for x
   x = 30,689,412.78/6,340.29
6. Step 6: Final answer
   x = 4,840.38