Finding the Fourth Proportional to 142,096.63, 196,107.74 and 122,019.97

Step by Step Solution

1. Step 1: Write the proportion equation
   142,096.63 : 196,107.74 = 122,019.97 : x
2. Step 2: Convert to fraction form
   142,096.63/196,107.74 = 122,019.97/x
3. Step 3: Cross multiply
   142,096.63x = 196,107.74 × 122,019.97
4. Step 4: Simplify right side
   142,096.63x = 23,929,059,941.47
5. Step 5: Solve for x
   x = 23,929,059,941.47/142,096.63
6. Step 6: Final answer
   x = 168,399.91