Finding the Fourth Proportional to 10,413.36, 14,370.24 and 5,697.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,413.36 : 14,370.24 = 5,697.72 : x
2. Step 2: Convert to fraction form
   10,413.36/14,370.24 = 5,697.72/x
3. Step 3: Cross multiply
   10,413.36x = 14,370.24 × 5,697.72
4. Step 4: Simplify right side
   10,413.36x = 81,877,603.85
5. Step 5: Solve for x
   x = 81,877,603.85/10,413.36
6. Step 6: Final answer
   x = 7,862.75