Finding the Fourth Proportional to 142,754.72, 196,912.31 and 91,833.75

Step by Step Solution

1. Step 1: Write the proportion equation
   142,754.72 : 196,912.31 = 91,833.75 : x
2. Step 2: Convert to fraction form
   142,754.72/196,912.31 = 91,833.75/x
3. Step 3: Cross multiply
   142,754.72x = 196,912.31 × 91,833.75
4. Step 4: Simplify right side
   142,754.72x = 18,083,195,389.29
5. Step 5: Solve for x
   x = 18,083,195,389.29/142,754.72
6. Step 6: Final answer
   x = 126,673.19