Finding the Fourth Proportional to 16,628.69, 22,945.75 and 9,913.05

Step by Step Solution

1. Step 1: Write the proportion equation
   16,628.69 : 22,945.75 = 9,913.05 : x
2. Step 2: Convert to fraction form
   16,628.69/22,945.75 = 9,913.05/x
3. Step 3: Cross multiply
   16,628.69x = 22,945.75 × 9,913.05
4. Step 4: Simplify right side
   16,628.69x = 227,462,342.25
5. Step 5: Solve for x
   x = 227,462,342.25/16,628.69
6. Step 6: Final answer
   x = 13,678.91