Finding the Fourth Proportional to 142,608.97, 196,933.71 and 91,710.09

Step by Step Solution

1. Step 1: Write the proportion equation
   142,608.97 : 196,933.71 = 91,710.09 : x
2. Step 2: Convert to fraction form
   142,608.97/196,933.71 = 91,710.09/x
3. Step 3: Cross multiply
   142,608.97x = 196,933.71 × 91,710.09
4. Step 4: Simplify right side
   142,608.97x = 18,060,808,612.05
5. Step 5: Solve for x
   x = 18,060,808,612.05/142,608.97
6. Step 6: Final answer
   x = 126,645.67