Finding the Fourth Proportional to 16,308.21, 24,470.52 and 12,156.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,308.21 : 24,470.52 = 12,156.56 : x
2. Step 2: Convert to fraction form
   16,308.21/24,470.52 = 12,156.56/x
3. Step 3: Cross multiply
   16,308.21x = 24,470.52 × 12,156.56
4. Step 4: Simplify right side
   16,308.21x = 297,477,222.26
5. Step 5: Solve for x
   x = 297,477,222.26/16,308.21
6. Step 6: Final answer
   x = 18,240.95