Finding the Fourth Proportional to 10,719.72, 16,079.42 and 2,928.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,719.72 : 16,079.42 = 2,928.52 : x
2. Step 2: Convert to fraction form
   10,719.72/16,079.42 = 2,928.52/x
3. Step 3: Cross multiply
   10,719.72x = 16,079.42 × 2,928.52
4. Step 4: Simplify right side
   10,719.72x = 47,088,903.06
5. Step 5: Solve for x
   x = 47,088,903.06/10,719.72
6. Step 6: Final answer
   x = 4,392.74