Finding the Fourth Proportional to 33,709.68, 50,571.72 and 12,933

Step by Step Solution

1. Step 1: Write the proportion equation
   33,709.68 : 50,571.72 = 12,933 : x
2. Step 2: Convert to fraction form
   33,709.68/50,571.72 = 12,933/x
3. Step 3: Cross multiply
   33,709.68x = 50,571.72 × 12,933
4. Step 4: Simplify right side
   33,709.68x = 654,044,054.76
5. Step 5: Solve for x
   x = 654,044,054.76/33,709.68
6. Step 6: Final answer
   x = 19,402.26