Finding the Fourth Proportional to 108,708.67, 150,019.46 and 65,682.15

Step by Step Solution

1. Step 1: Write the proportion equation
   108,708.67 : 150,019.46 = 65,682.15 : x
2. Step 2: Convert to fraction form
   108,708.67/150,019.46 = 65,682.15/x
3. Step 3: Cross multiply
   108,708.67x = 150,019.46 × 65,682.15
4. Step 4: Simplify right side
   108,708.67x = 9,853,600,674.64
5. Step 5: Solve for x
   x = 9,853,600,674.64/108,708.67
6. Step 6: Final answer
   x = 90,642.27