Finding the Fourth Proportional to 142,108.56, 213,174.18 and 82,950.21

Step by Step Solution

1. Step 1: Write the proportion equation
   142,108.56 : 213,174.18 = 82,950.21 : x
2. Step 2: Convert to fraction form
   142,108.56/213,174.18 = 82,950.21/x
3. Step 3: Cross multiply
   142,108.56x = 213,174.18 × 82,950.21
4. Step 4: Simplify right side
   142,108.56x = 17,682,842,997.58
5. Step 5: Solve for x
   x = 17,682,842,997.58/142,108.56
6. Step 6: Final answer
   x = 124,431.93