Finding the Fourth Proportional to 8,042.80, 12,066.22 and 3,111.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,042.80 : 12,066.22 = 3,111.10 : x
2. Step 2: Convert to fraction form
   8,042.80/12,066.22 = 3,111.10/x
3. Step 3: Cross multiply
   8,042.80x = 12,066.22 × 3,111.10
4. Step 4: Simplify right side
   8,042.80x = 37,539,217.04
5. Step 5: Solve for x
   x = 37,539,217.04/8,042.80
6. Step 6: Final answer
   x = 4,667.43