Finding the Fourth Proportional to 10,719, 16,078.71 and 2,928.02

Step by Step Solution

1. Step 1: Write the proportion equation
   10,719 : 16,078.71 = 2,928.02 : x
2. Step 2: Convert to fraction form
   10,719/16,078.71 = 2,928.02/x
3. Step 3: Cross multiply
   10,719x = 16,078.71 × 2,928.02
4. Step 4: Simplify right side
   10,719x = 47,078,784.45
5. Step 5: Solve for x
   x = 47,078,784.45/10,719
6. Step 6: Final answer
   x = 4,392.09