Finding the Fourth Proportional to 8,344.62, 12,507.82 and 3,408.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,344.62 : 12,507.82 = 3,408.38 : x
2. Step 2: Convert to fraction form
   8,344.62/12,507.82 = 3,408.38/x
3. Step 3: Cross multiply
   8,344.62x = 12,507.82 × 3,408.38
4. Step 4: Simplify right side
   8,344.62x = 42,631,379.38
5. Step 5: Solve for x
   x = 42,631,379.38/8,344.62
6. Step 6: Final answer
   x = 5,108.85