Finding the Fourth Proportional to 33,724.88, 50,558.76 and 13,991.12

Step by Step Solution

1. Step 1: Write the proportion equation
   33,724.88 : 50,558.76 = 13,991.12 : x
2. Step 2: Convert to fraction form
   33,724.88/50,558.76 = 13,991.12/x
3. Step 3: Cross multiply
   33,724.88x = 50,558.76 × 13,991.12
4. Step 4: Simplify right side
   33,724.88x = 707,373,678.21
5. Step 5: Solve for x
   x = 707,373,678.21/33,724.88
6. Step 6: Final answer
   x = 20,974.83