Finding the Fourth Proportional to 16,390.56, 24,588.87 and 8,076.30

Step by Step Solution

1. Step 1: Write the proportion equation
   16,390.56 : 24,588.87 = 8,076.30 : x
2. Step 2: Convert to fraction form
   16,390.56/24,588.87 = 8,076.30/x
3. Step 3: Cross multiply
   16,390.56x = 24,588.87 × 8,076.30
4. Step 4: Simplify right side
   16,390.56x = 198,587,090.78
5. Step 5: Solve for x
   x = 198,587,090.78/16,390.56
6. Step 6: Final answer
   x = 12,115.94