Finding the Fourth Proportional to 8,110.35, 12,158.35 and 3,429.49

Step by Step Solution

1. Step 1: Write the proportion equation
   8,110.35 : 12,158.35 = 3,429.49 : x
2. Step 2: Convert to fraction form
   8,110.35/12,158.35 = 3,429.49/x
3. Step 3: Cross multiply
   8,110.35x = 12,158.35 × 3,429.49
4. Step 4: Simplify right side
   8,110.35x = 41,696,942.86
5. Step 5: Solve for x
   x = 41,696,942.86/8,110.35
6. Step 6: Final answer
   x = 5,141.20