Finding the Fourth Proportional to 142,747.82, 196,998.44 and 79,085.61

Step by Step Solution

1. Step 1: Write the proportion equation
   142,747.82 : 196,998.44 = 79,085.61 : x
2. Step 2: Convert to fraction form
   142,747.82/196,998.44 = 79,085.61/x
3. Step 3: Cross multiply
   142,747.82x = 196,998.44 × 79,085.61
4. Step 4: Simplify right side
   142,747.82x = 15,579,741,401.02
5. Step 5: Solve for x
   x = 15,579,741,401.02/142,747.82
6. Step 6: Final answer
   x = 109,141.72