Finding the Fourth Proportional to 8,081.37, 12,118.82 and 2,887.65

Step by Step Solution

1. Step 1: Write the proportion equation
   8,081.37 : 12,118.82 = 2,887.65 : x
2. Step 2: Convert to fraction form
   8,081.37/12,118.82 = 2,887.65/x
3. Step 3: Cross multiply
   8,081.37x = 12,118.82 × 2,887.65
4. Step 4: Simplify right side
   8,081.37x = 34,994,896.13
5. Step 5: Solve for x
   x = 34,994,896.13/8,081.37
6. Step 6: Final answer
   x = 4,330.32