Finding the Fourth Proportional to 10,760.31, 16,139.17 and 2,863.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,760.31 : 16,139.17 = 2,863.40 : x
2. Step 2: Convert to fraction form
   10,760.31/16,139.17 = 2,863.40/x
3. Step 3: Cross multiply
   10,760.31x = 16,139.17 × 2,863.40
4. Step 4: Simplify right side
   10,760.31x = 46,212,885.06
5. Step 5: Solve for x
   x = 46,212,885.06/10,760.31
6. Step 6: Final answer
   x = 4,294.76