Finding the Fourth Proportional to 10,923.36, 16,458.72 and 9,018.24

Step by Step Solution

1. Step 1: Write the proportion equation
   10,923.36 : 16,458.72 = 9,018.24 : x
2. Step 2: Convert to fraction form
   10,923.36/16,458.72 = 9,018.24/x
3. Step 3: Cross multiply
   10,923.36x = 16,458.72 × 9,018.24
4. Step 4: Simplify right side
   10,923.36x = 148,428,687.05
5. Step 5: Solve for x
   x = 148,428,687.05/10,923.36
6. Step 6: Final answer
   x = 13,588.19