Finding the Fourth Proportional to 8,083.15, 12,112.32 and 5,440.87

Step by Step Solution

1. Step 1: Write the proportion equation
   8,083.15 : 12,112.32 = 5,440.87 : x
2. Step 2: Convert to fraction form
   8,083.15/12,112.32 = 5,440.87/x
3. Step 3: Cross multiply
   8,083.15x = 12,112.32 × 5,440.87
4. Step 4: Simplify right side
   8,083.15x = 65,901,558.52
5. Step 5: Solve for x
   x = 65,901,558.52/8,083.15
6. Step 6: Final answer
   x = 8,152.96