Finding the Fourth Proportional to 8,067.80, 12,105.48 and 3,136.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,067.80 : 12,105.48 = 3,136.16 : x
2. Step 2: Convert to fraction form
   8,067.80/12,105.48 = 3,136.16/x
3. Step 3: Cross multiply
   8,067.80x = 12,105.48 × 3,136.16
4. Step 4: Simplify right side
   8,067.80x = 37,964,722.16
5. Step 5: Solve for x
   x = 37,964,722.16/8,067.80
6. Step 6: Final answer
   x = 4,705.71