Finding the Fourth Proportional to 142,724.53, 196,959.85 and 79,066.43

Step by Step Solution

1. Step 1: Write the proportion equation
   142,724.53 : 196,959.85 = 79,066.43 : x
2. Step 2: Convert to fraction form
   142,724.53/196,959.85 = 79,066.43/x
3. Step 3: Cross multiply
   142,724.53x = 196,959.85 × 79,066.43
4. Step 4: Simplify right side
   142,724.53x = 15,572,912,193.72
5. Step 5: Solve for x
   x = 15,572,912,193.72/142,724.53
6. Step 6: Final answer
   x = 109,111.67