Finding the Fourth Proportional to 12,422.28, 17,140.86 and 7,044.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,422.28 : 17,140.86 = 7,044.42 : x
2. Step 2: Convert to fraction form
   12,422.28/17,140.86 = 7,044.42/x
3. Step 3: Cross multiply
   12,422.28x = 17,140.86 × 7,044.42
4. Step 4: Simplify right side
   12,422.28x = 120,747,417.00
5. Step 5: Solve for x
   x = 120,747,417.00/12,422.28
6. Step 6: Final answer
   x = 9,720.23