Finding the Fourth Proportional to 142,508.75, 196,614.32 and 82,078.18

Step by Step Solution

1. Step 1: Write the proportion equation
   142,508.75 : 196,614.32 = 82,078.18 : x
2. Step 2: Convert to fraction form
   142,508.75/196,614.32 = 82,078.18/x
3. Step 3: Cross multiply
   142,508.75x = 196,614.32 × 82,078.18
4. Step 4: Simplify right side
   142,508.75x = 16,137,744,645.61
5. Step 5: Solve for x
   x = 16,137,744,645.61/142,508.75
6. Step 6: Final answer
   x = 113,240.38