Finding the Fourth Proportional to 159,662.37, 220,326.57 and 91,632.09

Step by Step Solution

1. Step 1: Write the proportion equation
   159,662.37 : 220,326.57 = 91,632.09 : x
2. Step 2: Convert to fraction form
   159,662.37/220,326.57 = 91,632.09/x
3. Step 3: Cross multiply
   159,662.37x = 220,326.57 × 91,632.09
4. Step 4: Simplify right side
   159,662.37x = 20,188,984,091.63
5. Step 5: Solve for x
   x = 20,188,984,091.63/159,662.37
6. Step 6: Final answer
   x = 126,447.98