Finding the Fourth Proportional to 14,388.30, 21,597.12 and 13,827.96

Step by Step Solution

1. Step 1: Write the proportion equation
   14,388.30 : 21,597.12 = 13,827.96 : x
2. Step 2: Convert to fraction form
   14,388.30/21,597.12 = 13,827.96/x
3. Step 3: Cross multiply
   14,388.30x = 21,597.12 × 13,827.96
4. Step 4: Simplify right side
   14,388.30x = 298,644,111.48
5. Step 5: Solve for x
   x = 298,644,111.48/14,388.30
6. Step 6: Final answer
   x = 20,756.04