Finding the Fourth Proportional to 33,521.50, 50,288.73 and 12,743.38

Step by Step Solution

1. Step 1: Write the proportion equation
   33,521.50 : 50,288.73 = 12,743.38 : x
2. Step 2: Convert to fraction form
   33,521.50/50,288.73 = 12,743.38/x
3. Step 3: Cross multiply
   33,521.50x = 50,288.73 × 12,743.38
4. Step 4: Simplify right side
   33,521.50x = 640,848,080.95
5. Step 5: Solve for x
   x = 640,848,080.95/33,521.50
6. Step 6: Final answer
   x = 19,117.53