Finding the Fourth Proportional to 107,819.67, 161,550.69 and 65,571.96

Step by Step Solution

1. Step 1: Write the proportion equation
   107,819.67 : 161,550.69 = 65,571.96 : x
2. Step 2: Convert to fraction form
   107,819.67/161,550.69 = 65,571.96/x
3. Step 3: Cross multiply
   107,819.67x = 161,550.69 × 65,571.96
4. Step 4: Simplify right side
   107,819.67x = 10,593,195,382.65
5. Step 5: Solve for x
   x = 10,593,195,382.65/107,819.67
6. Step 6: Final answer
   x = 98,249.19