Finding the Fourth Proportional to 6,408.34, 9,614.06 and 3,120.68

Step by Step Solution

1. Step 1: Write the proportion equation
   6,408.34 : 9,614.06 = 3,120.68 : x
2. Step 2: Convert to fraction form
   6,408.34/9,614.06 = 3,120.68/x
3. Step 3: Cross multiply
   6,408.34x = 9,614.06 × 3,120.68
4. Step 4: Simplify right side
   6,408.34x = 30,002,404.76
5. Step 5: Solve for x
   x = 30,002,404.76/6,408.34
6. Step 6: Final answer
   x = 4,681.77