Finding the Fourth Proportional to 142,718.60, 196,951.86 and 79,055.08

Step by Step Solution

1. Step 1: Write the proportion equation
   142,718.60 : 196,951.86 = 79,055.08 : x
2. Step 2: Convert to fraction form
   142,718.60/196,951.86 = 79,055.08/x
3. Step 3: Cross multiply
   142,718.60x = 196,951.86 × 79,055.08
4. Step 4: Simplify right side
   142,718.60x = 15,570,045,048.45
5. Step 5: Solve for x
   x = 15,570,045,048.45/142,718.60
6. Step 6: Final answer
   x = 109,096.12