Finding the Fourth Proportional to 142,717.58, 196,956.77 and 79,055.39

Step by Step Solution

1. Step 1: Write the proportion equation
   142,717.58 : 196,956.77 = 79,055.39 : x
2. Step 2: Convert to fraction form
   142,717.58/196,956.77 = 79,055.39/x
3. Step 3: Cross multiply
   142,717.58x = 196,956.77 × 79,055.39
4. Step 4: Simplify right side
   142,717.58x = 15,570,494,362.61
5. Step 5: Solve for x
   x = 15,570,494,362.61/142,717.58
6. Step 6: Final answer
   x = 109,100.05