Finding the Fourth Proportional to 80,422.69, 110,910.64 and 50,210.77

Step by Step Solution

1. Step 1: Write the proportion equation
   80,422.69 : 110,910.64 = 50,210.77 : x
2. Step 2: Convert to fraction form
   80,422.69/110,910.64 = 50,210.77/x
3. Step 3: Cross multiply
   80,422.69x = 110,910.64 × 50,210.77
4. Step 4: Simplify right side
   80,422.69x = 5,568,908,635.59
5. Step 5: Solve for x
   x = 5,568,908,635.59/80,422.69
6. Step 6: Final answer
   x = 69,245.49