Finding the Fourth Proportional to 7,143.31, 10,718.52 and 2,763.82

Step by Step Solution

1. Step 1: Write the proportion equation
   7,143.31 : 10,718.52 = 2,763.82 : x
2. Step 2: Convert to fraction form
   7,143.31/10,718.52 = 2,763.82/x
3. Step 3: Cross multiply
   7,143.31x = 10,718.52 × 2,763.82
4. Step 4: Simplify right side
   7,143.31x = 29,624,059.95
5. Step 5: Solve for x
   x = 29,624,059.95/7,143.31
6. Step 6: Final answer
   x = 4,147.11