Finding the Fourth Proportional to 20,086.20, 27,714.15 and 14,419.98

Step by Step Solution

1. Step 1: Write the proportion equation
   20,086.20 : 27,714.15 = 14,419.98 : x
2. Step 2: Convert to fraction form
   20,086.20/27,714.15 = 14,419.98/x
3. Step 3: Cross multiply
   20,086.20x = 27,714.15 × 14,419.98
4. Step 4: Simplify right side
   20,086.20x = 399,637,488.72
5. Step 5: Solve for x
   x = 399,637,488.72/20,086.20
6. Step 6: Final answer
   x = 19,896.12