Finding the Fourth Proportional to 5,101.02, 7,039.78 and 2,863.12

Step by Step Solution

1. Step 1: Write the proportion equation
   5,101.02 : 7,039.78 = 2,863.12 : x
2. Step 2: Convert to fraction form
   5,101.02/7,039.78 = 2,863.12/x
3. Step 3: Cross multiply
   5,101.02x = 7,039.78 × 2,863.12
4. Step 4: Simplify right side
   5,101.02x = 20,155,734.91
5. Step 5: Solve for x
   x = 20,155,734.91/5,101.02
6. Step 6: Final answer
   x = 3,951.31