Finding the Fourth Proportional to 8,156.38, 12,234.18 and 3,474.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,156.38 : 12,234.18 = 3,474.12 : x
2. Step 2: Convert to fraction form
   8,156.38/12,234.18 = 3,474.12/x
3. Step 3: Cross multiply
   8,156.38x = 12,234.18 × 3,474.12
4. Step 4: Simplify right side
   8,156.38x = 42,502,948.25
5. Step 5: Solve for x
   x = 42,502,948.25/8,156.38
6. Step 6: Final answer
   x = 5,211.01