Finding the Fourth Proportional to 33,499.20, 50,191.20 and 17,680.80

Step by Step Solution

1. Step 1: Write the proportion equation
   33,499.20 : 50,191.20 = 17,680.80 : x
2. Step 2: Convert to fraction form
   33,499.20/50,191.20 = 17,680.80/x
3. Step 3: Cross multiply
   33,499.20x = 50,191.20 × 17,680.80
4. Step 4: Simplify right side
   33,499.20x = 887,420,568.96
5. Step 5: Solve for x
   x = 887,420,568.96/33,499.20
6. Step 6: Final answer
   x = 26,490.80