Finding the Fourth Proportional to 166,632.50, 229,952.86 and 91,181

Step by Step Solution

1. Step 1: Write the proportion equation
   166,632.50 : 229,952.86 = 91,181 : x
2. Step 2: Convert to fraction form
   166,632.50/229,952.86 = 91,181/x
3. Step 3: Cross multiply
   166,632.50x = 229,952.86 × 91,181
4. Step 4: Simplify right side
   166,632.50x = 20,967,331,727.66
5. Step 5: Solve for x
   x = 20,967,331,727.66/166,632.50
6. Step 6: Final answer
   x = 125,829.79