Finding the Fourth Proportional to 80,408.34, 110,890.89 and 50,196.47

Step by Step Solution

1. Step 1: Write the proportion equation
   80,408.34 : 110,890.89 = 50,196.47 : x
2. Step 2: Convert to fraction form
   80,408.34/110,890.89 = 50,196.47/x
3. Step 3: Cross multiply
   80,408.34x = 110,890.89 × 50,196.47
4. Step 4: Simplify right side
   80,408.34x = 5,566,330,678.70
5. Step 5: Solve for x
   x = 5,566,330,678.70/80,408.34
6. Step 6: Final answer
   x = 69,225.79