Finding the Fourth Proportional to 32,196.72, 44,442.40 and 20,280

Step by Step Solution

1. Step 1: Write the proportion equation
   32,196.72 : 44,442.40 = 20,280 : x
2. Step 2: Convert to fraction form
   32,196.72/44,442.40 = 20,280/x
3. Step 3: Cross multiply
   32,196.72x = 44,442.40 × 20,280
4. Step 4: Simplify right side
   32,196.72x = 901,291,872
5. Step 5: Solve for x
   x = 901,291,872/32,196.72
6. Step 6: Final answer
   x = 27,993.28