Finding the Fourth Proportional to 22,080.72, 33,120.72 and 5,440.88

Step by Step Solution

1. Step 1: Write the proportion equation
   22,080.72 : 33,120.72 = 5,440.88 : x
2. Step 2: Convert to fraction form
   22,080.72/33,120.72 = 5,440.88/x
3. Step 3: Cross multiply
   22,080.72x = 33,120.72 × 5,440.88
4. Step 4: Simplify right side
   22,080.72x = 180,205,863.03
5. Step 5: Solve for x
   x = 180,205,863.03/22,080.72
6. Step 6: Final answer
   x = 8,161.23