Finding the Fourth Proportional to 33,381.69, 50,099.89 and 13,660.42

Step by Step Solution

1. Step 1: Write the proportion equation
   33,381.69 : 50,099.89 = 13,660.42 : x
2. Step 2: Convert to fraction form
   33,381.69/50,099.89 = 13,660.42/x
3. Step 3: Cross multiply
   33,381.69x = 50,099.89 × 13,660.42
4. Step 4: Simplify right side
   33,381.69x = 684,385,539.35
5. Step 5: Solve for x
   x = 684,385,539.35/33,381.69
6. Step 6: Final answer
   x = 20,501.82