Finding the Fourth Proportional to 8,155.38, 12,234.57 and 3,475.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,155.38 : 12,234.57 = 3,475.38 : x
2. Step 2: Convert to fraction form
   8,155.38/12,234.57 = 3,475.38/x
3. Step 3: Cross multiply
   8,155.38x = 12,234.57 × 3,475.38
4. Step 4: Simplify right side
   8,155.38x = 42,519,779.89
5. Step 5: Solve for x
   x = 42,519,779.89/8,155.38
6. Step 6: Final answer
   x = 5,213.71