Finding the Fourth Proportional to 12,453.18, 17,176.59 and 7,413.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,453.18 : 17,176.59 = 7,413.49 : x
2. Step 2: Convert to fraction form
   12,453.18/17,176.59 = 7,413.49/x
3. Step 3: Cross multiply
   12,453.18x = 17,176.59 × 7,413.49
4. Step 4: Simplify right side
   12,453.18x = 127,338,499.67
5. Step 5: Solve for x
   x = 127,338,499.67/12,453.18
6. Step 6: Final answer
   x = 10,225.38