Finding the Fourth Proportional to 5,100.30, 7,038.45 and 2,862.18

Step by Step Solution

1. Step 1: Write the proportion equation
   5,100.30 : 7,038.45 = 2,862.18 : x
2. Step 2: Convert to fraction form
   5,100.30/7,038.45 = 2,862.18/x
3. Step 3: Cross multiply
   5,100.30x = 7,038.45 × 2,862.18
4. Step 4: Simplify right side
   5,100.30x = 20,145,310.82
5. Step 5: Solve for x
   x = 20,145,310.82/5,100.30
6. Step 6: Final answer
   x = 3,949.83