Finding the Fourth Proportional to 142,509.50, 196,615.35 and 82,078.93

Step by Step Solution

1. Step 1: Write the proportion equation
   142,509.50 : 196,615.35 = 82,078.93 : x
2. Step 2: Convert to fraction form
   142,509.50/196,615.35 = 82,078.93/x
3. Step 3: Cross multiply
   142,509.50x = 196,615.35 × 82,078.93
4. Step 4: Simplify right side
   142,509.50x = 16,137,977,058.04
5. Step 5: Solve for x
   x = 16,137,977,058.04/142,509.50
6. Step 6: Final answer
   x = 113,241.42