Finding the Fourth Proportional to 143,234.89, 197,669.31 and 82,824.49

Step by Step Solution

1. Step 1: Write the proportion equation
   143,234.89 : 197,669.31 = 82,824.49 : x
2. Step 2: Convert to fraction form
   143,234.89/197,669.31 = 82,824.49/x
3. Step 3: Cross multiply
   143,234.89x = 197,669.31 × 82,824.49
4. Step 4: Simplify right side
   143,234.89x = 16,371,859,789.40
5. Step 5: Solve for x
   x = 16,371,859,789.40/143,234.89
6. Step 6: Final answer
   x = 114,300.78