Finding the Fourth Proportional to 21,413.24, 32,111.35 and 8,257.22

Step by Step Solution

1. Step 1: Write the proportion equation
   21,413.24 : 32,111.35 = 8,257.22 : x
2. Step 2: Convert to fraction form
   21,413.24/32,111.35 = 8,257.22/x
3. Step 3: Cross multiply
   21,413.24x = 32,111.35 × 8,257.22
4. Step 4: Simplify right side
   21,413.24x = 265,150,300.25
5. Step 5: Solve for x
   x = 265,150,300.25/21,413.24
6. Step 6: Final answer
   x = 12,382.54