Finding the Fourth Proportional to 86,086.14, 118,780.43 and 50,259.89

Step by Step Solution

1. Step 1: Write the proportion equation
   86,086.14 : 118,780.43 = 50,259.89 : x
2. Step 2: Convert to fraction form
   86,086.14/118,780.43 = 50,259.89/x
3. Step 3: Cross multiply
   86,086.14x = 118,780.43 × 50,259.89
4. Step 4: Simplify right side
   86,086.14x = 5,969,891,391.60
5. Step 5: Solve for x
   x = 5,969,891,391.60/86,086.14
6. Step 6: Final answer
   x = 69,347.88