Finding the Fourth Proportional to 404,745.48, 607,061.16 and 254,527.80

Step by Step Solution

1. Step 1: Write the proportion equation
   404,745.48 : 607,061.16 = 254,527.80 : x
2. Step 2: Convert to fraction form
   404,745.48/607,061.16 = 254,527.80/x
3. Step 3: Cross multiply
   404,745.48x = 607,061.16 × 254,527.80
4. Step 4: Simplify right side
   404,745.48x = 154,513,941,520.25
5. Step 5: Solve for x
   x = 154,513,941,520.25/404,745.48
6. Step 6: Final answer
   x = 381,755.82