Finding the Fourth Proportional to 8,108.86, 12,158.16 and 3,426.46

Step by Step Solution

1. Step 1: Write the proportion equation
   8,108.86 : 12,158.16 = 3,426.46 : x
2. Step 2: Convert to fraction form
   8,108.86/12,158.16 = 3,426.46/x
3. Step 3: Cross multiply
   8,108.86x = 12,158.16 × 3,426.46
4. Step 4: Simplify right side
   8,108.86x = 41,659,448.91
5. Step 5: Solve for x
   x = 41,659,448.91/8,108.86
6. Step 6: Final answer
   x = 5,137.52