Finding the Fourth Proportional to 10,933.36, 16,400.72 and 3,142.24

Step by Step Solution

1. Step 1: Write the proportion equation
   10,933.36 : 16,400.72 = 3,142.24 : x
2. Step 2: Convert to fraction form
   10,933.36/16,400.72 = 3,142.24/x
3. Step 3: Cross multiply
   10,933.36x = 16,400.72 × 3,142.24
4. Step 4: Simplify right side
   10,933.36x = 51,534,998.41
5. Step 5: Solve for x
   x = 51,534,998.41/10,933.36
6. Step 6: Final answer
   x = 4,713.56