Finding the Fourth Proportional to 142,567.67, 196,721.43 and 82,126.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,567.67 : 196,721.43 = 82,126.50 : x
2. Step 2: Convert to fraction form
   142,567.67/196,721.43 = 82,126.50/x
3. Step 3: Cross multiply
   142,567.67x = 196,721.43 × 82,126.50
4. Step 4: Simplify right side
   142,567.67x = 16,156,042,520.90
5. Step 5: Solve for x
   x = 16,156,042,520.90/142,567.67
6. Step 6: Final answer
   x = 113,321.93