Finding the Fourth Proportional to 16,601.69, 22,908.31 and 9,429.05

Step by Step Solution

1. Step 1: Write the proportion equation
   16,601.69 : 22,908.31 = 9,429.05 : x
2. Step 2: Convert to fraction form
   16,601.69/22,908.31 = 9,429.05/x
3. Step 3: Cross multiply
   16,601.69x = 22,908.31 × 9,429.05
4. Step 4: Simplify right side
   16,601.69x = 216,003,634.10
5. Step 5: Solve for x
   x = 216,003,634.10/16,601.69
6. Step 6: Final answer
   x = 13,010.94