Finding the Fourth Proportional to 755,010.78, 1,132,632.81 and 275,279.10

Step by Step Solution

1. Step 1: Write the proportion equation
   755,010.78 : 1,132,632.81 = 275,279.10 : x
2. Step 2: Convert to fraction form
   755,010.78/1,132,632.81 = 275,279.10/x
3. Step 3: Cross multiply
   755,010.78x = 1,132,632.81 × 275,279.10
4. Step 4: Simplify right side
   755,010.78x = 311,790,140,567.27
5. Step 5: Solve for x
   x = 311,790,140,567.27/755,010.78
6. Step 6: Final answer
   x = 412,961.18