Finding the Fourth Proportional to 33,704.47, 50,557.91 and 12,642.37

Step by Step Solution

1. Step 1: Write the proportion equation
   33,704.47 : 50,557.91 = 12,642.37 : x
2. Step 2: Convert to fraction form
   33,704.47/50,557.91 = 12,642.37/x
3. Step 3: Cross multiply
   33,704.47x = 50,557.91 × 12,642.37
4. Step 4: Simplify right side
   33,704.47x = 639,171,804.65
5. Step 5: Solve for x
   x = 639,171,804.65/33,704.47
6. Step 6: Final answer
   x = 18,964.01