Finding the Fourth Proportional to 19,016.28, 28,522.62 and 5,865.12

Step by Step Solution

1. Step 1: Write the proportion equation
   19,016.28 : 28,522.62 = 5,865.12 : x
2. Step 2: Convert to fraction form
   19,016.28/28,522.62 = 5,865.12/x
3. Step 3: Cross multiply
   19,016.28x = 28,522.62 × 5,865.12
4. Step 4: Simplify right side
   19,016.28x = 167,288,589.01
5. Step 5: Solve for x
   x = 167,288,589.01/19,016.28
6. Step 6: Final answer
   x = 8,797.12