Finding the Fourth Proportional to 86,639.12, 119,562.73 and 49,850.82

Step by Step Solution

1. Step 1: Write the proportion equation
   86,639.12 : 119,562.73 = 49,850.82 : x
2. Step 2: Convert to fraction form
   86,639.12/119,562.73 = 49,850.82/x
3. Step 3: Cross multiply
   86,639.12x = 119,562.73 × 49,850.82
4. Step 4: Simplify right side
   86,639.12x = 5,960,300,131.94
5. Step 5: Solve for x
   x = 5,960,300,131.94/86,639.12
6. Step 6: Final answer
   x = 68,794.56