Finding the Fourth Proportional to 8,138.18, 12,196.20 and 4,234.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,138.18 : 12,196.20 = 4,234.52 : x
2. Step 2: Convert to fraction form
   8,138.18/12,196.20 = 4,234.52/x
3. Step 3: Cross multiply
   8,138.18x = 12,196.20 × 4,234.52
4. Step 4: Simplify right side
   8,138.18x = 51,645,052.82
5. Step 5: Solve for x
   x = 51,645,052.82/8,138.18
6. Step 6: Final answer
   x = 6,346.02