Finding the Fourth Proportional to 9,069.20, 13,597.68 and 3,144.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,069.20 : 13,597.68 = 3,144.56 : x
2. Step 2: Convert to fraction form
   9,069.20/13,597.68 = 3,144.56/x
3. Step 3: Cross multiply
   9,069.20x = 13,597.68 × 3,144.56
4. Step 4: Simplify right side
   9,069.20x = 42,758,720.62
5. Step 5: Solve for x
   x = 42,758,720.62/9,069.20
6. Step 6: Final answer
   x = 4,714.72