Finding the Fourth Proportional to 15,216.72, 22,828.20 and 5,856.72

Step by Step Solution

1. Step 1: Write the proportion equation
   15,216.72 : 22,828.20 = 5,856.72 : x
2. Step 2: Convert to fraction form
   15,216.72/22,828.20 = 5,856.72/x
3. Step 3: Cross multiply
   15,216.72x = 22,828.20 × 5,856.72
4. Step 4: Simplify right side
   15,216.72x = 133,698,375.50
5. Step 5: Solve for x
   x = 133,698,375.50/15,216.72
6. Step 6: Final answer
   x = 8,786.28