Finding the Fourth Proportional to 142,722.25, 196,956.71 and 79,064.17

Step by Step Solution

1. Step 1: Write the proportion equation
   142,722.25 : 196,956.71 = 79,064.17 : x
2. Step 2: Convert to fraction form
   142,722.25/196,956.71 = 79,064.17/x
3. Step 3: Cross multiply
   142,722.25x = 196,956.71 × 79,064.17
4. Step 4: Simplify right side
   142,722.25x = 15,572,218,802.08
5. Step 5: Solve for x
   x = 15,572,218,802.08/142,722.25
6. Step 6: Final answer
   x = 109,108.56