Finding the Fourth Proportional to 16,004.72, 23,998.86 and 8,989.54

Step by Step Solution

1. Step 1: Write the proportion equation
   16,004.72 : 23,998.86 = 8,989.54 : x
2. Step 2: Convert to fraction form
   16,004.72/23,998.86 = 8,989.54/x
3. Step 3: Cross multiply
   16,004.72x = 23,998.86 × 8,989.54
4. Step 4: Simplify right side
   16,004.72x = 215,738,651.93
5. Step 5: Solve for x
   x = 215,738,651.93/16,004.72
6. Step 6: Final answer
   x = 13,479.69