Finding the Fourth Proportional to 33,822.72, 50,747.04 and 12,761.28

Step by Step Solution

1. Step 1: Write the proportion equation
   33,822.72 : 50,747.04 = 12,761.28 : x
2. Step 2: Convert to fraction form
   33,822.72/50,747.04 = 12,761.28/x
3. Step 3: Cross multiply
   33,822.72x = 50,747.04 × 12,761.28
4. Step 4: Simplify right side
   33,822.72x = 647,597,186.61
5. Step 5: Solve for x
   x = 647,597,186.61/33,822.72
6. Step 6: Final answer
   x = 19,146.81