Finding the Fourth Proportional to 108,680.82, 162,229.57 and 100,667.31

Step by Step Solution

1. Step 1: Write the proportion equation
   108,680.82 : 162,229.57 = 100,667.31 : x
2. Step 2: Convert to fraction form
   108,680.82/162,229.57 = 100,667.31/x
3. Step 3: Cross multiply
   108,680.82x = 162,229.57 × 100,667.31
4. Step 4: Simplify right side
   108,680.82x = 16,331,214,162.69
5. Step 5: Solve for x
   x = 16,331,214,162.69/108,680.82
6. Step 6: Final answer
   x = 150,267.68