Finding the Fourth Proportional to 5,105.61, 7,045.33 and 2,867.82

Step by Step Solution

1. Step 1: Write the proportion equation
   5,105.61 : 7,045.33 = 2,867.82 : x
2. Step 2: Convert to fraction form
   5,105.61/7,045.33 = 2,867.82/x
3. Step 3: Cross multiply
   5,105.61x = 7,045.33 × 2,867.82
4. Step 4: Simplify right side
   5,105.61x = 20,204,738.28
5. Step 5: Solve for x
   x = 20,204,738.28/5,105.61
6. Step 6: Final answer
   x = 3,957.36