Finding the Fourth Proportional to 22,485.25, 31,028.83 and 12,413.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,485.25 : 31,028.83 = 12,413.48 : x
2. Step 2: Convert to fraction form
   22,485.25/31,028.83 = 12,413.48/x
3. Step 3: Cross multiply
   22,485.25x = 31,028.83 × 12,413.48
4. Step 4: Simplify right side
   22,485.25x = 385,175,574.45
5. Step 5: Solve for x
   x = 385,175,574.45/22,485.25
6. Step 6: Final answer
   x = 17,130.15