Finding the Fourth Proportional to 12,421.72, 17,141.12 and 7,044.44

Step by Step Solution

1. Step 1: Write the proportion equation
   12,421.72 : 17,141.12 = 7,044.44 : x
2. Step 2: Convert to fraction form
   12,421.72/17,141.12 = 7,044.44/x
3. Step 3: Cross multiply
   12,421.72x = 17,141.12 × 7,044.44
4. Step 4: Simplify right side
   12,421.72x = 120,749,496.86
5. Step 5: Solve for x
   x = 120,749,496.86/12,421.72
6. Step 6: Final answer
   x = 9,720.83