Finding the Fourth Proportional to 10,139.38, 15,208.99 and 2,744.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,139.38 : 15,208.99 = 2,744.59 : x
2. Step 2: Convert to fraction form
   10,139.38/15,208.99 = 2,744.59/x
3. Step 3: Cross multiply
   10,139.38x = 15,208.99 × 2,744.59
4. Step 4: Simplify right side
   10,139.38x = 41,742,441.86
5. Step 5: Solve for x
   x = 41,742,441.86/10,139.38
6. Step 6: Final answer
   x = 4,116.86