Finding the Fourth Proportional to 10,142.04, 15,211.31 and 2,744.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,142.04 : 15,211.31 = 2,744.78 : x
2. Step 2: Convert to fraction form
   10,142.04/15,211.31 = 2,744.78/x
3. Step 3: Cross multiply
   10,142.04x = 15,211.31 × 2,744.78
4. Step 4: Simplify right side
   10,142.04x = 41,751,609.68
5. Step 5: Solve for x
   x = 41,751,609.68/10,142.04
6. Step 6: Final answer
   x = 4,116.69