Finding the Fourth Proportional to 142,736.38, 196,789.50 and 122,807.34

Step by Step Solution

1. Step 1: Write the proportion equation
   142,736.38 : 196,789.50 = 122,807.34 : x
2. Step 2: Convert to fraction form
   142,736.38/196,789.50 = 122,807.34/x
3. Step 3: Cross multiply
   142,736.38x = 196,789.50 × 122,807.34
4. Step 4: Simplify right side
   142,736.38x = 24,167,195,034.93
5. Step 5: Solve for x
   x = 24,167,195,034.93/142,736.38
6. Step 6: Final answer
   x = 169,313.50