Finding the Fourth Proportional to 65,448.73, 90,323.04 and 49,287.10

Step by Step Solution

1. Step 1: Write the proportion equation
   65,448.73 : 90,323.04 = 49,287.10 : x
2. Step 2: Convert to fraction form
   65,448.73/90,323.04 = 49,287.10/x
3. Step 3: Cross multiply
   65,448.73x = 90,323.04 × 49,287.10
4. Step 4: Simplify right side
   65,448.73x = 4,451,760,704.78
5. Step 5: Solve for x
   x = 4,451,760,704.78/65,448.73
6. Step 6: Final answer
   x = 68,019.05