Finding the Fourth Proportional to 5,081.98, 7,012.26 and 2,986.54

Step by Step Solution

1. Step 1: Write the proportion equation
   5,081.98 : 7,012.26 = 2,986.54 : x
2. Step 2: Convert to fraction form
   5,081.98/7,012.26 = 2,986.54/x
3. Step 3: Cross multiply
   5,081.98x = 7,012.26 × 2,986.54
4. Step 4: Simplify right side
   5,081.98x = 20,942,394.98
5. Step 5: Solve for x
   x = 20,942,394.98/5,081.98
6. Step 6: Final answer
   x = 4,120.91