Finding the Fourth Proportional to 16,628.16, 22,946.72 and 9,176

Step by Step Solution

1. Step 1: Write the proportion equation
   16,628.16 : 22,946.72 = 9,176 : x
2. Step 2: Convert to fraction form
   16,628.16/22,946.72 = 9,176/x
3. Step 3: Cross multiply
   16,628.16x = 22,946.72 × 9,176
4. Step 4: Simplify right side
   16,628.16x = 210,559,102.72
5. Step 5: Solve for x
   x = 210,559,102.72/16,628.16
6. Step 6: Final answer
   x = 12,662.80