Finding the Fourth Proportional to 9,453.92, 13,044.17 and 7,947.21

Step by Step Solution

1. Step 1: Write the proportion equation
   9,453.92 : 13,044.17 = 7,947.21 : x
2. Step 2: Convert to fraction form
   9,453.92/13,044.17 = 7,947.21/x
3. Step 3: Cross multiply
   9,453.92x = 13,044.17 × 7,947.21
4. Step 4: Simplify right side
   9,453.92x = 103,664,758.27
5. Step 5: Solve for x
   x = 103,664,758.27/9,453.92
6. Step 6: Final answer
   x = 10,965.27