Finding the Fourth Proportional to 20,460.09, 30,714.72 and 13,866.27

Step by Step Solution

1. Step 1: Write the proportion equation
   20,460.09 : 30,714.72 = 13,866.27 : x
2. Step 2: Convert to fraction form
   20,460.09/30,714.72 = 13,866.27/x
3. Step 3: Cross multiply
   20,460.09x = 30,714.72 × 13,866.27
4. Step 4: Simplify right side
   20,460.09x = 425,898,600.49
5. Step 5: Solve for x
   x = 425,898,600.49/20,460.09
6. Step 6: Final answer
   x = 20,816.07