Finding the Fourth Proportional to 21,597.57, 29,793.29 and 14,871.53

Step by Step Solution

1. Step 1: Write the proportion equation
   21,597.57 : 29,793.29 = 14,871.53 : x
2. Step 2: Convert to fraction form
   21,597.57/29,793.29 = 14,871.53/x
3. Step 3: Cross multiply
   21,597.57x = 29,793.29 × 14,871.53
4. Step 4: Simplify right side
   21,597.57x = 443,071,806.16
5. Step 5: Solve for x
   x = 443,071,806.16/21,597.57
6. Step 6: Final answer
   x = 20,514.89