Finding the Fourth Proportional to 80,886.74, 111,577.28 and 50,619.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,886.74 : 111,577.28 = 50,619.50 : x
2. Step 2: Convert to fraction form
   80,886.74/111,577.28 = 50,619.50/x
3. Step 3: Cross multiply
   80,886.74x = 111,577.28 × 50,619.50
4. Step 4: Simplify right side
   80,886.74x = 5,647,985,313.98
5. Step 5: Solve for x
   x = 5,647,985,313.98/80,886.74
6. Step 6: Final answer
   x = 69,825.85