Finding the Fourth Proportional to 33,155.20, 45,743.88 and 20,395

Step by Step Solution

1. Step 1: Write the proportion equation
   33,155.20 : 45,743.88 = 20,395 : x
2. Step 2: Convert to fraction form
   33,155.20/45,743.88 = 20,395/x
3. Step 3: Cross multiply
   33,155.20x = 45,743.88 × 20,395
4. Step 4: Simplify right side
   33,155.20x = 932,946,432.60
5. Step 5: Solve for x
   x = 932,946,432.60/33,155.20
6. Step 6: Final answer
   x = 28,138.77