Finding the Fourth Proportional to 8,066.75, 12,100.07 and 3,139.83

Step by Step Solution

1. Step 1: Write the proportion equation
   8,066.75 : 12,100.07 = 3,139.83 : x
2. Step 2: Convert to fraction form
   8,066.75/12,100.07 = 3,139.83/x
3. Step 3: Cross multiply
   8,066.75x = 12,100.07 × 3,139.83
4. Step 4: Simplify right side
   8,066.75x = 37,992,170.64
5. Step 5: Solve for x
   x = 37,992,170.64/8,066.75
6. Step 6: Final answer
   x = 4,709.73