Finding the Fourth Proportional to 16,665.48, 22,998.38 and 9,111.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,665.48 : 22,998.38 = 9,111.69 : x
2. Step 2: Convert to fraction form
   16,665.48/22,998.38 = 9,111.69/x
3. Step 3: Cross multiply
   16,665.48x = 22,998.38 × 9,111.69
4. Step 4: Simplify right side
   16,665.48x = 209,554,063.50
5. Step 5: Solve for x
   x = 209,554,063.50/16,665.48
6. Step 6: Final answer
   x = 12,574.14