Finding the Fourth Proportional to 275,078.72, 412,678.56 and 88,109.12

Step by Step Solution

1. Step 1: Write the proportion equation
   275,078.72 : 412,678.56 = 88,109.12 : x
2. Step 2: Convert to fraction form
   275,078.72/412,678.56 = 88,109.12/x
3. Step 3: Cross multiply
   275,078.72x = 412,678.56 × 88,109.12
4. Step 4: Simplify right side
   275,078.72x = 36,360,744,764.47
5. Step 5: Solve for x
   x = 36,360,744,764.47/275,078.72
6. Step 6: Final answer
   x = 132,183.05