Finding the Fourth Proportional to 142,073.69, 196,087.12 and 84,716.72

Step by Step Solution

1. Step 1: Write the proportion equation
   142,073.69 : 196,087.12 = 84,716.72 : x
2. Step 2: Convert to fraction form
   142,073.69/196,087.12 = 84,716.72/x
3. Step 3: Cross multiply
   142,073.69x = 196,087.12 × 84,716.72
4. Step 4: Simplify right side
   142,073.69x = 16,611,857,640.65
5. Step 5: Solve for x
   x = 16,611,857,640.65/142,073.69
6. Step 6: Final answer
   x = 116,924.24