Finding the Fourth Proportional to 12,646.96, 17,453.98 and 9,454.73

Step by Step Solution

1. Step 1: Write the proportion equation
   12,646.96 : 17,453.98 = 9,454.73 : x
2. Step 2: Convert to fraction form
   12,646.96/17,453.98 = 9,454.73/x
3. Step 3: Cross multiply
   12,646.96x = 17,453.98 × 9,454.73
4. Step 4: Simplify right side
   12,646.96x = 165,022,592.87
5. Step 5: Solve for x
   x = 165,022,592.87/12,646.96
6. Step 6: Final answer
   x = 13,048.40