Finding the Fourth Proportional to 142,588.72, 196,793.14 and 82,147.60

Step by Step Solution

1. Step 1: Write the proportion equation
   142,588.72 : 196,793.14 = 82,147.60 : x
2. Step 2: Convert to fraction form
   142,588.72/196,793.14 = 82,147.60/x
3. Step 3: Cross multiply
   142,588.72x = 196,793.14 × 82,147.60
4. Step 4: Simplify right side
   142,588.72x = 16,166,084,147.46
5. Step 5: Solve for x
   x = 16,166,084,147.46/142,588.72
6. Step 6: Final answer
   x = 113,375.62