Finding the Fourth Proportional to 9,729.98, 14,571.56 and 5,557.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,729.98 : 14,571.56 = 5,557.32 : x
2. Step 2: Convert to fraction form
   9,729.98/14,571.56 = 5,557.32/x
3. Step 3: Cross multiply
   9,729.98x = 14,571.56 × 5,557.32
4. Step 4: Simplify right side
   9,729.98x = 80,978,794.03
5. Step 5: Solve for x
   x = 80,978,794.03/9,729.98
6. Step 6: Final answer
   x = 8,322.61