Finding the Fourth Proportional to 33,689.34, 50,552.22 and 13,981.50

Step by Step Solution

1. Step 1: Write the proportion equation
   33,689.34 : 50,552.22 = 13,981.50 : x
2. Step 2: Convert to fraction form
   33,689.34/50,552.22 = 13,981.50/x
3. Step 3: Cross multiply
   33,689.34x = 50,552.22 × 13,981.50
4. Step 4: Simplify right side
   33,689.34x = 706,795,863.93
5. Step 5: Solve for x
   x = 706,795,863.93/33,689.34
6. Step 6: Final answer
   x = 20,979.81