Finding the Fourth Proportional to 10,413.59, 15,621.59 and 3,393.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,413.59 : 15,621.59 = 3,393.32 : x
2. Step 2: Convert to fraction form
   10,413.59/15,621.59 = 3,393.32/x
3. Step 3: Cross multiply
   10,413.59x = 15,621.59 × 3,393.32
4. Step 4: Simplify right side
   10,413.59x = 53,008,984.15
5. Step 5: Solve for x
   x = 53,008,984.15/10,413.59
6. Step 6: Final answer
   x = 5,090.37