Finding the Fourth Proportional to 142,917.71, 196,731.42 and 123,527.79

Step by Step Solution

1. Step 1: Write the proportion equation
   142,917.71 : 196,731.42 = 123,527.79 : x
2. Step 2: Convert to fraction form
   142,917.71/196,731.42 = 123,527.79/x
3. Step 3: Cross multiply
   142,917.71x = 196,731.42 × 123,527.79
4. Step 4: Simplify right side
   142,917.71x = 24,301,797,536.16
5. Step 5: Solve for x
   x = 24,301,797,536.16/142,917.71
6. Step 6: Final answer
   x = 170,040.50