Finding the Fourth Proportional to 80,780.33, 111,404.30 and 50,568.41

Step by Step Solution

1. Step 1: Write the proportion equation
   80,780.33 : 111,404.30 = 50,568.41 : x
2. Step 2: Convert to fraction form
   80,780.33/111,404.30 = 50,568.41/x
3. Step 3: Cross multiply
   80,780.33x = 111,404.30 × 50,568.41
4. Step 4: Simplify right side
   80,780.33x = 5,633,538,343.83
5. Step 5: Solve for x
   x = 5,633,538,343.83/80,780.33
6. Step 6: Final answer
   x = 69,738.98