Finding the Fourth Proportional to 9,413.32, 14,118.30 and 5,513.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,413.32 : 14,118.30 = 5,513.80 : x
2. Step 2: Convert to fraction form
   9,413.32/14,118.30 = 5,513.80/x
3. Step 3: Cross multiply
   9,413.32x = 14,118.30 × 5,513.80
4. Step 4: Simplify right side
   9,413.32x = 77,845,482.54
5. Step 5: Solve for x
   x = 77,845,482.54/9,413.32
6. Step 6: Final answer
   x = 8,269.72