Finding the Fourth Proportional to 142,627.42, 196,832.39 and 78,965.27

Step by Step Solution

1. Step 1: Write the proportion equation
   142,627.42 : 196,832.39 = 78,965.27 : x
2. Step 2: Convert to fraction form
   142,627.42/196,832.39 = 78,965.27/x
3. Step 3: Cross multiply
   142,627.42x = 196,832.39 × 78,965.27
4. Step 4: Simplify right side
   142,627.42x = 15,542,922,821.10
5. Step 5: Solve for x
   x = 15,542,922,821.10/142,627.42
6. Step 6: Final answer
   x = 108,975.70