Finding the Fourth Proportional to 142,917.98, 197,222.06 and 79,260.49

Step by Step Solution

1. Step 1: Write the proportion equation
   142,917.98 : 197,222.06 = 79,260.49 : x
2. Step 2: Convert to fraction form
   142,917.98/197,222.06 = 79,260.49/x
3. Step 3: Cross multiply
   142,917.98x = 197,222.06 × 79,260.49
4. Step 4: Simplify right side
   142,917.98x = 15,631,915,732.00
5. Step 5: Solve for x
   x = 15,631,915,732.00/142,917.98
6. Step 6: Final answer
   x = 109,376.83