Finding the Fourth Proportional to 8,081.98, 12,115.62 and 2,886.64

Step by Step Solution

1. Step 1: Write the proportion equation
   8,081.98 : 12,115.62 = 2,886.64 : x
2. Step 2: Convert to fraction form
   8,081.98/12,115.62 = 2,886.64/x
3. Step 3: Cross multiply
   8,081.98x = 12,115.62 × 2,886.64
4. Step 4: Simplify right side
   8,081.98x = 34,973,433.32
5. Step 5: Solve for x
   x = 34,973,433.32/8,081.98
6. Step 6: Final answer
   x = 4,327.33