Finding the Fourth Proportional to 22,118.72, 33,171.20 and 7,324.32

Step by Step Solution

1. Step 1: Write the proportion equation
   22,118.72 : 33,171.20 = 7,324.32 : x
2. Step 2: Convert to fraction form
   22,118.72/33,171.20 = 7,324.32/x
3. Step 3: Cross multiply
   22,118.72x = 33,171.20 × 7,324.32
4. Step 4: Simplify right side
   22,118.72x = 242,956,483.58
5. Step 5: Solve for x
   x = 242,956,483.58/22,118.72
6. Step 6: Final answer
   x = 10,984.20