Finding the Fourth Proportional to 80,917.32, 111,620.16 and 50,650.08

Step by Step Solution

1. Step 1: Write the proportion equation
   80,917.32 : 111,620.16 = 50,650.08 : x
2. Step 2: Convert to fraction form
   80,917.32/111,620.16 = 50,650.08/x
3. Step 3: Cross multiply
   80,917.32x = 111,620.16 × 50,650.08
4. Step 4: Simplify right side
   80,917.32x = 5,653,570,033.61
5. Step 5: Solve for x
   x = 5,653,570,033.61/80,917.32
6. Step 6: Final answer
   x = 69,868.48