Finding the Fourth Proportional to 33,144, 49,718.43 and 12,367.50

Step by Step Solution

1. Step 1: Write the proportion equation
   33,144 : 49,718.43 = 12,367.50 : x
2. Step 2: Convert to fraction form
   33,144/49,718.43 = 12,367.50/x
3. Step 3: Cross multiply
   33,144x = 49,718.43 × 12,367.50
4. Step 4: Simplify right side
   33,144x = 614,892,683.03
5. Step 5: Solve for x
   x = 614,892,683.03/33,144
6. Step 6: Final answer
   x = 18,552.16