Finding the Fourth Proportional to 9,144.68, 13,729.98 and 8,727.08

Step by Step Solution

1. Step 1: Write the proportion equation
   9,144.68 : 13,729.98 = 8,727.08 : x
2. Step 2: Convert to fraction form
   9,144.68/13,729.98 = 8,727.08/x
3. Step 3: Cross multiply
   9,144.68x = 13,729.98 × 8,727.08
4. Step 4: Simplify right side
   9,144.68x = 119,822,633.86
5. Step 5: Solve for x
   x = 119,822,633.86/9,144.68
6. Step 6: Final answer
   x = 13,102.99