Finding the Fourth Proportional to 14,128.36, 19,500.72 and 9,653.92

Step by Step Solution

1. Step 1: Write the proportion equation
   14,128.36 : 19,500.72 = 9,653.92 : x
2. Step 2: Convert to fraction form
   14,128.36/19,500.72 = 9,653.92/x
3. Step 3: Cross multiply
   14,128.36x = 19,500.72 × 9,653.92
4. Step 4: Simplify right side
   14,128.36x = 188,258,390.82
5. Step 5: Solve for x
   x = 188,258,390.82/14,128.36
6. Step 6: Final answer
   x = 13,324.86