Finding the Fourth Proportional to 10,413.89, 14,356.21 and 7,424.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,413.89 : 14,356.21 = 7,424.54 : x
2. Step 2: Convert to fraction form
   10,413.89/14,356.21 = 7,424.54/x
3. Step 3: Cross multiply
   10,413.89x = 14,356.21 × 7,424.54
4. Step 4: Simplify right side
   10,413.89x = 106,588,255.39
5. Step 5: Solve for x
   x = 106,588,255.39/10,413.89
6. Step 6: Final answer
   x = 10,235.20