Finding the Fourth Proportional to 10,314.20, 15,469.89 and 2,919.24

Step by Step Solution

1. Step 1: Write the proportion equation
   10,314.20 : 15,469.89 = 2,919.24 : x
2. Step 2: Convert to fraction form
   10,314.20/15,469.89 = 2,919.24/x
3. Step 3: Cross multiply
   10,314.20x = 15,469.89 × 2,919.24
4. Step 4: Simplify right side
   10,314.20x = 45,160,321.68
5. Step 5: Solve for x
   x = 45,160,321.68/10,314.20
6. Step 6: Final answer
   x = 4,378.46