Finding the Fourth Proportional to 479,038.56, 661,050.95 and 274,945.83

Step by Step Solution

1. Step 1: Write the proportion equation
   479,038.56 : 661,050.95 = 274,945.83 : x
2. Step 2: Convert to fraction form
   479,038.56/661,050.95 = 274,945.83/x
3. Step 3: Cross multiply
   479,038.56x = 661,050.95 × 274,945.83
4. Step 4: Simplify right side
   479,038.56x = 181,753,200,745.31
5. Step 5: Solve for x
   x = 181,753,200,745.31/479,038.56
6. Step 6: Final answer
   x = 379,412.46