Finding the Fourth Proportional to 33,520.56, 50,235.48 and 12,732.72

Step by Step Solution

1. Step 1: Write the proportion equation
   33,520.56 : 50,235.48 = 12,732.72 : x
2. Step 2: Convert to fraction form
   33,520.56/50,235.48 = 12,732.72/x
3. Step 3: Cross multiply
   33,520.56x = 50,235.48 × 12,732.72
4. Step 4: Simplify right side
   33,520.56x = 639,634,300.91
5. Step 5: Solve for x
   x = 639,634,300.91/33,520.56
6. Step 6: Final answer
   x = 19,081.85