Finding the Fourth Proportional to 8,105.86, 12,153.67 and 3,423.45

Step by Step Solution

1. Step 1: Write the proportion equation
   8,105.86 : 12,153.67 = 3,423.45 : x
2. Step 2: Convert to fraction form
   8,105.86/12,153.67 = 3,423.45/x
3. Step 3: Cross multiply
   8,105.86x = 12,153.67 × 3,423.45
4. Step 4: Simplify right side
   8,105.86x = 41,607,481.56
5. Step 5: Solve for x
   x = 41,607,481.56/8,105.86
6. Step 6: Final answer
   x = 5,133.01