Finding the Fourth Proportional to 8,081.57, 12,120.98 and 2,236.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,081.57 : 12,120.98 = 2,236.81 : x
2. Step 2: Convert to fraction form
   8,081.57/12,120.98 = 2,236.81/x
3. Step 3: Cross multiply
   8,081.57x = 12,120.98 × 2,236.81
4. Step 4: Simplify right side
   8,081.57x = 27,112,329.27
5. Step 5: Solve for x
   x = 27,112,329.27/8,081.57
6. Step 6: Final answer
   x = 3,354.83