Finding the Fourth Proportional to 142,097.86, 196,096.62 and 78,435.73

Step by Step Solution

1. Step 1: Write the proportion equation
   142,097.86 : 196,096.62 = 78,435.73 : x
2. Step 2: Convert to fraction form
   142,097.86/196,096.62 = 78,435.73/x
3. Step 3: Cross multiply
   142,097.86x = 196,096.62 × 78,435.73
4. Step 4: Simplify right side
   142,097.86x = 15,380,981,540.23
5. Step 5: Solve for x
   x = 15,380,981,540.23/142,097.86
6. Step 6: Final answer
   x = 108,242.18