Finding the Fourth Proportional to 111,756.24, 167,744.52 and 82,090.80

Step by Step Solution

1. Step 1: Write the proportion equation
   111,756.24 : 167,744.52 = 82,090.80 : x
2. Step 2: Convert to fraction form
   111,756.24/167,744.52 = 82,090.80/x
3. Step 3: Cross multiply
   111,756.24x = 167,744.52 × 82,090.80
4. Step 4: Simplify right side
   111,756.24x = 13,770,281,842.42
5. Step 5: Solve for x
   x = 13,770,281,842.42/111,756.24
6. Step 6: Final answer
   x = 123,217.12