Finding the Fourth Proportional to 80,556.15, 111,221.25 and 50,384.19

Step by Step Solution

1. Step 1: Write the proportion equation
   80,556.15 : 111,221.25 = 50,384.19 : x
2. Step 2: Convert to fraction form
   80,556.15/111,221.25 = 50,384.19/x
3. Step 3: Cross multiply
   80,556.15x = 111,221.25 × 50,384.19
4. Step 4: Simplify right side
   80,556.15x = 5,603,792,592.04
5. Step 5: Solve for x
   x = 5,603,792,592.04/80,556.15
6. Step 6: Final answer
   x = 69,563.81