Finding the Fourth Proportional to 16,488.51, 22,753.64 and 9,413.55

Step by Step Solution

1. Step 1: Write the proportion equation
   16,488.51 : 22,753.64 = 9,413.55 : x
2. Step 2: Convert to fraction form
   16,488.51/22,753.64 = 9,413.55/x
3. Step 3: Cross multiply
   16,488.51x = 22,753.64 × 9,413.55
4. Step 4: Simplify right side
   16,488.51x = 214,192,527.82
5. Step 5: Solve for x
   x = 214,192,527.82/16,488.51
6. Step 6: Final answer
   x = 12,990.41