Finding the Fourth Proportional to 488,443.37, 674,064.99 and 273,578.72

Step by Step Solution

1. Step 1: Write the proportion equation
   488,443.37 : 674,064.99 = 273,578.72 : x
2. Step 2: Convert to fraction form
   488,443.37/674,064.99 = 273,578.72/x
3. Step 3: Cross multiply
   488,443.37x = 674,064.99 × 273,578.72
4. Step 4: Simplify right side
   488,443.37x = 184,409,833,790.69
5. Step 5: Solve for x
   x = 184,409,833,790.69/488,443.37
6. Step 6: Final answer
   x = 377,545.99