Finding the Fourth Proportional to 10,444.31, 14,413.88 and 5,728.90

Step by Step Solution

1. Step 1: Write the proportion equation
   10,444.31 : 14,413.88 = 5,728.90 : x
2. Step 2: Convert to fraction form
   10,444.31/14,413.88 = 5,728.90/x
3. Step 3: Cross multiply
   10,444.31x = 14,413.88 × 5,728.90
4. Step 4: Simplify right side
   10,444.31x = 82,575,677.13
5. Step 5: Solve for x
   x = 82,575,677.13/10,444.31
6. Step 6: Final answer
   x = 7,906.28