Finding the Fourth Proportional to 9,621.32, 14,413.28 and 5,448.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,621.32 : 14,413.28 = 5,448.47 : x
2. Step 2: Convert to fraction form
   9,621.32/14,413.28 = 5,448.47/x
3. Step 3: Cross multiply
   9,621.32x = 14,413.28 × 5,448.47
4. Step 4: Simplify right side
   9,621.32x = 78,530,224.37
5. Step 5: Solve for x
   x = 78,530,224.37/9,621.32
6. Step 6: Final answer
   x = 8,162.11