Finding the Fourth Proportional to 8,103.79, 12,150.83 and 3,167.55

Step by Step Solution

1. Step 1: Write the proportion equation
   8,103.79 : 12,150.83 = 3,167.55 : x
2. Step 2: Convert to fraction form
   8,103.79/12,150.83 = 3,167.55/x
3. Step 3: Cross multiply
   8,103.79x = 12,150.83 × 3,167.55
4. Step 4: Simplify right side
   8,103.79x = 38,488,361.57
5. Step 5: Solve for x
   x = 38,488,361.57/8,103.79
6. Step 6: Final answer
   x = 4,749.43