Finding the Fourth Proportional to 8,107.89, 12,166.40 and 3,725.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,107.89 : 12,166.40 = 3,725.69 : x
2. Step 2: Convert to fraction form
   8,107.89/12,166.40 = 3,725.69/x
3. Step 3: Cross multiply
   8,107.89x = 12,166.40 × 3,725.69
4. Step 4: Simplify right side
   8,107.89x = 45,328,155.36
5. Step 5: Solve for x
   x = 45,328,155.36/8,107.89
6. Step 6: Final answer
   x = 5,590.62