Finding the Fourth Proportional to 16,892.45, 23,311.24 and 9,339.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,892.45 : 23,311.24 = 9,339.10 : x
2. Step 2: Convert to fraction form
   16,892.45/23,311.24 = 9,339.10/x
3. Step 3: Cross multiply
   16,892.45x = 23,311.24 × 9,339.10
4. Step 4: Simplify right side
   16,892.45x = 217,705,919.86
5. Step 5: Solve for x
   x = 217,705,919.86/16,892.45
6. Step 6: Final answer
   x = 12,887.76