Finding the Fourth Proportional to 65,724.58, 98,493.09 and 50,674.78

Step by Step Solution

1. Step 1: Write the proportion equation
   65,724.58 : 98,493.09 = 50,674.78 : x
2. Step 2: Convert to fraction form
   65,724.58/98,493.09 = 50,674.78/x
3. Step 3: Cross multiply
   65,724.58x = 98,493.09 × 50,674.78
4. Step 4: Simplify right side
   65,724.58x = 4,991,115,667.27
5. Step 5: Solve for x
   x = 4,991,115,667.27/65,724.58
6. Step 6: Final answer
   x = 75,939.86