Finding the Fourth Proportional to 9,725.68, 13,399.32 and 9,069.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,725.68 : 13,399.32 = 9,069.04 : x
2. Step 2: Convert to fraction form
   9,725.68/13,399.32 = 9,069.04/x
3. Step 3: Cross multiply
   9,725.68x = 13,399.32 × 9,069.04
4. Step 4: Simplify right side
   9,725.68x = 121,518,969.05
5. Step 5: Solve for x
   x = 121,518,969.05/9,725.68
6. Step 6: Final answer
   x = 12,494.65