Finding the Fourth Proportional to 16,421.41, 24,608.98 and 9,390.88

Step by Step Solution

1. Step 1: Write the proportion equation
   16,421.41 : 24,608.98 = 9,390.88 : x
2. Step 2: Convert to fraction form
   16,421.41/24,608.98 = 9,390.88/x
3. Step 3: Cross multiply
   16,421.41x = 24,608.98 × 9,390.88
4. Step 4: Simplify right side
   16,421.41x = 231,099,978.10
5. Step 5: Solve for x
   x = 231,099,978.10/16,421.41
6. Step 6: Final answer
   x = 14,073.09