Finding the Fourth Proportional to 142,061.28, 195,979.44 and 82,433.76

Step by Step Solution

1. Step 1: Write the proportion equation
   142,061.28 : 195,979.44 = 82,433.76 : x
2. Step 2: Convert to fraction form
   142,061.28/195,979.44 = 82,433.76/x
3. Step 3: Cross multiply
   142,061.28x = 195,979.44 × 82,433.76
4. Step 4: Simplify right side
   142,061.28x = 16,155,322,121.89
5. Step 5: Solve for x
   x = 16,155,322,121.89/142,061.28
6. Step 6: Final answer
   x = 113,720.80