Finding the Fourth Proportional to 33,707.52, 50,542.72 and 12,933.12

Step by Step Solution

1. Step 1: Write the proportion equation
   33,707.52 : 50,542.72 = 12,933.12 : x
2. Step 2: Convert to fraction form
   33,707.52/50,542.72 = 12,933.12/x
3. Step 3: Cross multiply
   33,707.52x = 50,542.72 × 12,933.12
4. Step 4: Simplify right side
   33,707.52x = 653,675,062.89
5. Step 5: Solve for x
   x = 653,675,062.89/33,707.52
6. Step 6: Final answer
   x = 19,392.56