Finding the Fourth Proportional to 413,096.56, 569,617.91 and 285,550.72

Step by Step Solution

1. Step 1: Write the proportion equation
   413,096.56 : 569,617.91 = 285,550.72 : x
2. Step 2: Convert to fraction form
   413,096.56/569,617.91 = 285,550.72/x
3. Step 3: Cross multiply
   413,096.56x = 569,617.91 × 285,550.72
4. Step 4: Simplify right side
   413,096.56x = 162,654,804,325.40
5. Step 5: Solve for x
   x = 162,654,804,325.40/413,096.56
6. Step 6: Final answer
   x = 393,745.24