Finding the Fourth Proportional to 11,699.27, 17,550.73 and 7,018.18

Step by Step Solution

1. Step 1: Write the proportion equation
   11,699.27 : 17,550.73 = 7,018.18 : x
2. Step 2: Convert to fraction form
   11,699.27/17,550.73 = 7,018.18/x
3. Step 3: Cross multiply
   11,699.27x = 17,550.73 × 7,018.18
4. Step 4: Simplify right side
   11,699.27x = 123,174,243.69
5. Step 5: Solve for x
   x = 123,174,243.69/11,699.27
6. Step 6: Final answer
   x = 10,528.37