Finding the Fourth Proportional to 9,394.48, 12,963.85 and 5,144.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,394.48 : 12,963.85 = 5,144.72 : x
2. Step 2: Convert to fraction form
   9,394.48/12,963.85 = 5,144.72/x
3. Step 3: Cross multiply
   9,394.48x = 12,963.85 × 5,144.72
4. Step 4: Simplify right side
   9,394.48x = 66,695,300.69
5. Step 5: Solve for x
   x = 66,695,300.69/9,394.48
6. Step 6: Final answer
   x = 7,099.41