Finding the Fourth Proportional to 33,149.34, 49,737.66 and 13,422.78

Step by Step Solution

1. Step 1: Write the proportion equation
   33,149.34 : 49,737.66 = 13,422.78 : x
2. Step 2: Convert to fraction form
   33,149.34/49,737.66 = 13,422.78/x
3. Step 3: Cross multiply
   33,149.34x = 49,737.66 × 13,422.78
4. Step 4: Simplify right side
   33,149.34x = 667,617,667.89
5. Step 5: Solve for x
   x = 667,617,667.89/33,149.34
6. Step 6: Final answer
   x = 20,139.70