Finding the Fourth Proportional to 8,270.82, 11,413.98 and 4,685.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,270.82 : 11,413.98 = 4,685.72 : x
2. Step 2: Convert to fraction form
   8,270.82/11,413.98 = 4,685.72/x
3. Step 3: Cross multiply
   8,270.82x = 11,413.98 × 4,685.72
4. Step 4: Simplify right side
   8,270.82x = 53,482,714.37
5. Step 5: Solve for x
   x = 53,482,714.37/8,270.82
6. Step 6: Final answer
   x = 6,466.43