Finding the Fourth Proportional to 166,626.50, 229,944.57 and 91,175

Step by Step Solution

1. Step 1: Write the proportion equation
   166,626.50 : 229,944.57 = 91,175 : x
2. Step 2: Convert to fraction form
   166,626.50/229,944.57 = 91,175/x
3. Step 3: Cross multiply
   166,626.50x = 229,944.57 × 91,175
4. Step 4: Simplify right side
   166,626.50x = 20,965,196,169.75
5. Step 5: Solve for x
   x = 20,965,196,169.75/166,626.50
6. Step 6: Final answer
   x = 125,821.50