Finding the Fourth Proportional to 16,245.39, 22,413.56 and 9,531.30

Step by Step Solution

1. Step 1: Write the proportion equation
   16,245.39 : 22,413.56 = 9,531.30 : x
2. Step 2: Convert to fraction form
   16,245.39/22,413.56 = 9,531.30/x
3. Step 3: Cross multiply
   16,245.39x = 22,413.56 × 9,531.30
4. Step 4: Simplify right side
   16,245.39x = 213,630,364.43
5. Step 5: Solve for x
   x = 213,630,364.43/16,245.39
6. Step 6: Final answer
   x = 13,150.21