Finding the Fourth Proportional to 8,081.37, 12,105.86 and 3,692.79

Step by Step Solution

1. Step 1: Write the proportion equation
   8,081.37 : 12,105.86 = 3,692.79 : x
2. Step 2: Convert to fraction form
   8,081.37/12,105.86 = 3,692.79/x
3. Step 3: Cross multiply
   8,081.37x = 12,105.86 × 3,692.79
4. Step 4: Simplify right side
   8,081.37x = 44,704,380.29
5. Step 5: Solve for x
   x = 44,704,380.29/8,081.37
6. Step 6: Final answer
   x = 5,531.78