Finding the Fourth Proportional to 142,028.59, 213,042.61 and 82,822.74

Step by Step Solution

1. Step 1: Write the proportion equation
   142,028.59 : 213,042.61 = 82,822.74 : x
2. Step 2: Convert to fraction form
   142,028.59/213,042.61 = 82,822.74/x
3. Step 3: Cross multiply
   142,028.59x = 213,042.61 × 82,822.74
4. Step 4: Simplify right side
   142,028.59x = 17,644,772,282.84
5. Step 5: Solve for x
   x = 17,644,772,282.84/142,028.59
6. Step 6: Final answer
   x = 124,233.95