Finding the Fourth Proportional to 21,124.27, 31,656.85 and 14,016.86

Step by Step Solution

1. Step 1: Write the proportion equation
   21,124.27 : 31,656.85 = 14,016.86 : x
2. Step 2: Convert to fraction form
   21,124.27/31,656.85 = 14,016.86/x
3. Step 3: Cross multiply
   21,124.27x = 31,656.85 × 14,016.86
4. Step 4: Simplify right side
   21,124.27x = 443,729,634.49
5. Step 5: Solve for x
   x = 443,729,634.49/21,124.27
6. Step 6: Final answer
   x = 21,005.68