Finding the Fourth Proportional to 10,483.58, 15,724.86 and 3,909.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,483.58 : 15,724.86 = 3,909.25 : x
2. Step 2: Convert to fraction form
   10,483.58/15,724.86 = 3,909.25/x
3. Step 3: Cross multiply
   10,483.58x = 15,724.86 × 3,909.25
4. Step 4: Simplify right side
   10,483.58x = 61,472,413.95
5. Step 5: Solve for x
   x = 61,472,413.95/10,483.58
6. Step 6: Final answer
   x = 5,863.69