Finding the Fourth Proportional to 16,410.86, 24,638.17 and 13,961.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,410.86 : 24,638.17 = 13,961.42 : x
2. Step 2: Convert to fraction form
   16,410.86/24,638.17 = 13,961.42/x
3. Step 3: Cross multiply
   16,410.86x = 24,638.17 × 13,961.42
4. Step 4: Simplify right side
   16,410.86x = 343,983,839.40
5. Step 5: Solve for x
   x = 343,983,839.40/16,410.86
6. Step 6: Final answer
   x = 20,960.74