Finding the Fourth Proportional to 16,620.34, 24,871.98 and 10,383.30

Step by Step Solution

1. Step 1: Write the proportion equation
   16,620.34 : 24,871.98 = 10,383.30 : x
2. Step 2: Convert to fraction form
   16,620.34/24,871.98 = 10,383.30/x
3. Step 3: Cross multiply
   16,620.34x = 24,871.98 × 10,383.30
4. Step 4: Simplify right side
   16,620.34x = 258,253,229.93
5. Step 5: Solve for x
   x = 258,253,229.93/16,620.34
6. Step 6: Final answer
   x = 15,538.38