Finding the Fourth Proportional to 8,103.86, 12,138.16 and 3,935.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,103.86 : 12,138.16 = 3,935.10 : x
2. Step 2: Convert to fraction form
   8,103.86/12,138.16 = 3,935.10/x
3. Step 3: Cross multiply
   8,103.86x = 12,138.16 × 3,935.10
4. Step 4: Simplify right side
   8,103.86x = 47,764,873.42
5. Step 5: Solve for x
   x = 47,764,873.42/8,103.86
6. Step 6: Final answer
   x = 5,894.09