Finding the Fourth Proportional to 8,724.76, 12,036.24 and 5,367.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,724.76 : 12,036.24 = 5,367.28 : x
2. Step 2: Convert to fraction form
   8,724.76/12,036.24 = 5,367.28/x
3. Step 3: Cross multiply
   8,724.76x = 12,036.24 × 5,367.28
4. Step 4: Simplify right side
   8,724.76x = 64,601,870.23
5. Step 5: Solve for x
   x = 64,601,870.23/8,724.76
6. Step 6: Final answer
   x = 7,404.43