Finding the Fourth Proportional to 16,900.72, 23,320.96 and 9,346.03

Step by Step Solution

1. Step 1: Write the proportion equation
   16,900.72 : 23,320.96 = 9,346.03 : x
2. Step 2: Convert to fraction form
   16,900.72/23,320.96 = 9,346.03/x
3. Step 3: Cross multiply
   16,900.72x = 23,320.96 × 9,346.03
4. Step 4: Simplify right side
   16,900.72x = 217,958,391.79
5. Step 5: Solve for x
   x = 217,958,391.79/16,900.72
6. Step 6: Final answer
   x = 12,896.40