Finding the Fourth Proportional to 8,046.80, 12,072.22 and 3,115.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,046.80 : 12,072.22 = 3,115.10 : x
2. Step 2: Convert to fraction form
   8,046.80/12,072.22 = 3,115.10/x
3. Step 3: Cross multiply
   8,046.80x = 12,072.22 × 3,115.10
4. Step 4: Simplify right side
   8,046.80x = 37,606,172.52
5. Step 5: Solve for x
   x = 37,606,172.52/8,046.80
6. Step 6: Final answer
   x = 4,673.43