Finding the Fourth Proportional to 16,334.78, 24,477.59 and 12,155.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,334.78 : 24,477.59 = 12,155.18 : x
2. Step 2: Convert to fraction form
   16,334.78/24,477.59 = 12,155.18/x
3. Step 3: Cross multiply
   16,334.78x = 24,477.59 × 12,155.18
4. Step 4: Simplify right side
   16,334.78x = 297,529,329.25
5. Step 5: Solve for x
   x = 297,529,329.25/16,334.78
6. Step 6: Final answer
   x = 18,214.47