Finding the Fourth Proportional to 12,709.28, 17,538.90 and 7,044.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,709.28 : 17,538.90 = 7,044.12 : x
2. Step 2: Convert to fraction form
   12,709.28/17,538.90 = 7,044.12/x
3. Step 3: Cross multiply
   12,709.28x = 17,538.90 × 7,044.12
4. Step 4: Simplify right side
   12,709.28x = 123,546,116.27
5. Step 5: Solve for x
   x = 123,546,116.27/12,709.28
6. Step 6: Final answer
   x = 9,720.94