Finding the Fourth Proportional to 10,488.20, 14,473.92 and 5,772.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,488.20 : 14,473.92 = 5,772.48 : x
2. Step 2: Convert to fraction form
   10,488.20/14,473.92 = 5,772.48/x
3. Step 3: Cross multiply
   10,488.20x = 14,473.92 × 5,772.48
4. Step 4: Simplify right side
   10,488.20x = 83,550,413.72
5. Step 5: Solve for x
   x = 83,550,413.72/10,488.20
6. Step 6: Final answer
   x = 7,966.14