Finding the Fourth Proportional to 111,780.24, 167,780.52 and 82,114.80

Step by Step Solution

1. Step 1: Write the proportion equation
   111,780.24 : 167,780.52 = 82,114.80 : x
2. Step 2: Convert to fraction form
   111,780.24/167,780.52 = 82,114.80/x
3. Step 3: Cross multiply
   111,780.24x = 167,780.52 × 82,114.80
4. Step 4: Simplify right side
   111,780.24x = 13,777,263,843.70
5. Step 5: Solve for x
   x = 13,777,263,843.70/111,780.24
6. Step 6: Final answer
   x = 123,253.12