Finding the Fourth Proportional to 111,756.50, 167,744.90 and 82,091.06

Step by Step Solution

1. Step 1: Write the proportion equation
   111,756.50 : 167,744.90 = 82,091.06 : x
2. Step 2: Convert to fraction form
   111,756.50/167,744.90 = 82,091.06/x
3. Step 3: Cross multiply
   111,756.50x = 167,744.90 × 82,091.06
4. Step 4: Simplify right side
   111,756.50x = 13,770,356,650.59
5. Step 5: Solve for x
   x = 13,770,356,650.59/111,756.50
6. Step 6: Final answer
   x = 123,217.50