Finding the Fourth Proportional to 5,101.33, 7,039.79 and 2,863.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,101.33 : 7,039.79 = 2,863.15 : x
2. Step 2: Convert to fraction form
   5,101.33/7,039.79 = 2,863.15/x
3. Step 3: Cross multiply
   5,101.33x = 7,039.79 × 2,863.15
4. Step 4: Simplify right side
   5,101.33x = 20,155,945.51
5. Step 5: Solve for x
   x = 20,155,945.51/5,101.33
6. Step 6: Final answer
   x = 3,951.12