Finding the Fourth Proportional to 5,081.98, 7,617.78 and 2,886.08

Step by Step Solution

1. Step 1: Write the proportion equation
   5,081.98 : 7,617.78 = 2,886.08 : x
2. Step 2: Convert to fraction form
   5,081.98/7,617.78 = 2,886.08/x
3. Step 3: Cross multiply
   5,081.98x = 7,617.78 × 2,886.08
4. Step 4: Simplify right side
   5,081.98x = 21,985,522.50
5. Step 5: Solve for x
   x = 21,985,522.50/5,081.98
6. Step 6: Final answer
   x = 4,326.17