Finding the Fourth Proportional to 8,131.10, 12,198.83 and 3,451.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,131.10 : 12,198.83 = 3,451.32 : x
2. Step 2: Convert to fraction form
   8,131.10/12,198.83 = 3,451.32/x
3. Step 3: Cross multiply
   8,131.10x = 12,198.83 × 3,451.32
4. Step 4: Simplify right side
   8,131.10x = 42,102,048.70
5. Step 5: Solve for x
   x = 42,102,048.70/8,131.10
6. Step 6: Final answer
   x = 5,177.91