Finding the Fourth Proportional to 16,404.14, 24,569.21 and 7,620.57

Step by Step Solution

1. Step 1: Write the proportion equation
   16,404.14 : 24,569.21 = 7,620.57 : x
2. Step 2: Convert to fraction form
   16,404.14/24,569.21 = 7,620.57/x
3. Step 3: Cross multiply
   16,404.14x = 24,569.21 × 7,620.57
4. Step 4: Simplify right side
   16,404.14x = 187,231,384.65
5. Step 5: Solve for x
   x = 187,231,384.65/16,404.14
6. Step 6: Final answer
   x = 11,413.67