Finding the Fourth Proportional to 8,043.80, 12,067.72 and 3,112.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,043.80 : 12,067.72 = 3,112.10 : x
2. Step 2: Convert to fraction form
   8,043.80/12,067.72 = 3,112.10/x
3. Step 3: Cross multiply
   8,043.80x = 12,067.72 × 3,112.10
4. Step 4: Simplify right side
   8,043.80x = 37,555,951.41
5. Step 5: Solve for x
   x = 37,555,951.41/8,043.80
6. Step 6: Final answer
   x = 4,668.93