Finding the Fourth Proportional to 16,402.56, 24,550.32 and 12,018.96

Step by Step Solution

1. Step 1: Write the proportion equation
   16,402.56 : 24,550.32 = 12,018.96 : x
2. Step 2: Convert to fraction form
   16,402.56/24,550.32 = 12,018.96/x
3. Step 3: Cross multiply
   16,402.56x = 24,550.32 × 12,018.96
4. Step 4: Simplify right side
   16,402.56x = 295,069,314.07
5. Step 5: Solve for x
   x = 295,069,314.07/16,402.56
6. Step 6: Final answer
   x = 17,989.22