Finding the Fourth Proportional to 8,103.91, 12,158.02 and 2,909.83

Step by Step Solution

1. Step 1: Write the proportion equation
   8,103.91 : 12,158.02 = 2,909.83 : x
2. Step 2: Convert to fraction form
   8,103.91/12,158.02 = 2,909.83/x
3. Step 3: Cross multiply
   8,103.91x = 12,158.02 × 2,909.83
4. Step 4: Simplify right side
   8,103.91x = 35,377,710.55
5. Step 5: Solve for x
   x = 35,377,710.55/8,103.91
6. Step 6: Final answer
   x = 4,365.51