Finding the Fourth Proportional to 16,898.72, 23,320.31 and 9,242.14

Step by Step Solution

1. Step 1: Write the proportion equation
   16,898.72 : 23,320.31 = 9,242.14 : x
2. Step 2: Convert to fraction form
   16,898.72/23,320.31 = 9,242.14/x
3. Step 3: Cross multiply
   16,898.72x = 23,320.31 × 9,242.14
4. Step 4: Simplify right side
   16,898.72x = 215,529,623.86
5. Step 5: Solve for x
   x = 215,529,623.86/16,898.72
6. Step 6: Final answer
   x = 12,754.20