Finding the Fourth Proportional to 142,738.56, 196,976.61 and 79,074.99

Step by Step Solution

1. Step 1: Write the proportion equation
   142,738.56 : 196,976.61 = 79,074.99 : x
2. Step 2: Convert to fraction form
   142,738.56/196,976.61 = 79,074.99/x
3. Step 3: Cross multiply
   142,738.56x = 196,976.61 × 79,074.99
4. Step 4: Simplify right side
   142,738.56x = 15,575,923,465.98
5. Step 5: Solve for x
   x = 15,575,923,465.98/142,738.56
6. Step 6: Final answer
   x = 109,122.04