Finding the Fourth Proportional to 80,647.84, 111,259.20 and 50,380.48

Step by Step Solution

1. Step 1: Write the proportion equation
   80,647.84 : 111,259.20 = 50,380.48 : x
2. Step 2: Convert to fraction form
   80,647.84/111,259.20 = 50,380.48/x
3. Step 3: Cross multiply
   80,647.84x = 111,259.20 × 50,380.48
4. Step 4: Simplify right side
   80,647.84x = 5,605,291,900.42
5. Step 5: Solve for x
   x = 5,605,291,900.42/80,647.84
6. Step 6: Final answer
   x = 69,503.31