Finding the Fourth Proportional to 5,081.65, 7,012.50 and 2,843.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,081.65 : 7,012.50 = 2,843.78 : x
2. Step 2: Convert to fraction form
   5,081.65/7,012.50 = 2,843.78/x
3. Step 3: Cross multiply
   5,081.65x = 7,012.50 × 2,843.78
4. Step 4: Simplify right side
   5,081.65x = 19,942,007.25
5. Step 5: Solve for x
   x = 19,942,007.25/5,081.65
6. Step 6: Final answer
   x = 3,924.32