Finding the Fourth Proportional to 80,667.78, 120,912.03 and 60,882.18

Step by Step Solution

1. Step 1: Write the proportion equation
   80,667.78 : 120,912.03 = 60,882.18 : x
2. Step 2: Convert to fraction form
   80,667.78/120,912.03 = 60,882.18/x
3. Step 3: Cross multiply
   80,667.78x = 120,912.03 × 60,882.18
4. Step 4: Simplify right side
   80,667.78x = 7,361,387,974.63
5. Step 5: Solve for x
   x = 7,361,387,974.63/80,667.78
6. Step 6: Final answer
   x = 91,255.62