Finding the Fourth Proportional to 16,628.39, 22,947.71 and 9,458.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,628.39 : 22,947.71 = 9,458.12 : x
2. Step 2: Convert to fraction form
   16,628.39/22,947.71 = 9,458.12/x
3. Step 3: Cross multiply
   16,628.39x = 22,947.71 × 9,458.12
4. Step 4: Simplify right side
   16,628.39x = 217,042,095.85
5. Step 5: Solve for x
   x = 217,042,095.85/16,628.39
6. Step 6: Final answer
   x = 13,052.50