Finding the Fourth Proportional to 142,609.71, 196,821.99 and 82,168.77

Step by Step Solution

1. Step 1: Write the proportion equation
   142,609.71 : 196,821.99 = 82,168.77 : x
2. Step 2: Convert to fraction form
   142,609.71/196,821.99 = 82,168.77/x
3. Step 3: Cross multiply
   142,609.71x = 196,821.99 × 82,168.77
4. Step 4: Simplify right side
   142,609.71x = 16,172,620,827.25
5. Step 5: Solve for x
   x = 16,172,620,827.25/142,609.71
6. Step 6: Final answer
   x = 113,404.77