Finding the Fourth Proportional to 141,972.48, 212,938.56 and 82,836

Step by Step Solution

1. Step 1: Write the proportion equation
   141,972.48 : 212,938.56 = 82,836 : x
2. Step 2: Convert to fraction form
   141,972.48/212,938.56 = 82,836/x
3. Step 3: Cross multiply
   141,972.48x = 212,938.56 × 82,836
4. Step 4: Simplify right side
   141,972.48x = 17,638,978,556.16
5. Step 5: Solve for x
   x = 17,638,978,556.16/141,972.48
6. Step 6: Final answer
   x = 124,242.24