Finding the Fourth Proportional to 9,727.72, 13,433.70 and 8,322.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,727.72 : 13,433.70 = 8,322.28 : x
2. Step 2: Convert to fraction form
   9,727.72/13,433.70 = 8,322.28/x
3. Step 3: Cross multiply
   9,727.72x = 13,433.70 × 8,322.28
4. Step 4: Simplify right side
   9,727.72x = 111,799,012.84
5. Step 5: Solve for x
   x = 111,799,012.84/9,727.72
6. Step 6: Final answer
   x = 11,492.83