Finding the Fourth Proportional to 10,257.04, 15,386.17 and 2,761.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,257.04 : 15,386.17 = 2,761.71 : x
2. Step 2: Convert to fraction form
   10,257.04/15,386.17 = 2,761.71/x
3. Step 3: Cross multiply
   10,257.04x = 15,386.17 × 2,761.71
4. Step 4: Simplify right side
   10,257.04x = 42,492,139.55
5. Step 5: Solve for x
   x = 42,492,139.55/10,257.04
6. Step 6: Final answer
   x = 4,142.73