Finding the Fourth Proportional to 9,723.55, 13,413.90 and 5,742.01

Step by Step Solution

1. Step 1: Write the proportion equation
   9,723.55 : 13,413.90 = 5,742.01 : x
2. Step 2: Convert to fraction form
   9,723.55/13,413.90 = 5,742.01/x
3. Step 3: Cross multiply
   9,723.55x = 13,413.90 × 5,742.01
4. Step 4: Simplify right side
   9,723.55x = 77,022,747.94
5. Step 5: Solve for x
   x = 77,022,747.94/9,723.55
6. Step 6: Final answer
   x = 7,921.26