Finding the Fourth Proportional to 5,231.37, 7,841.55 and 2,760.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,231.37 : 7,841.55 = 2,760.72 : x
2. Step 2: Convert to fraction form
   5,231.37/7,841.55 = 2,760.72/x
3. Step 3: Cross multiply
   5,231.37x = 7,841.55 × 2,760.72
4. Step 4: Simplify right side
   5,231.37x = 21,648,323.92
5. Step 5: Solve for x
   x = 21,648,323.92/5,231.37
6. Step 6: Final answer
   x = 4,138.17