Finding the Fourth Proportional to 409,923.27, 610,809.72 and 365,206.41

Step by Step Solution

1. Step 1: Write the proportion equation
   409,923.27 : 610,809.72 = 365,206.41 : x
2. Step 2: Convert to fraction form
   409,923.27/610,809.72 = 365,206.41/x
3. Step 3: Cross multiply
   409,923.27x = 610,809.72 × 365,206.41
4. Step 4: Simplify right side
   409,923.27x = 223,071,625,034.31
5. Step 5: Solve for x
   x = 223,071,625,034.31/409,923.27
6. Step 6: Final answer
   x = 544,178.98