Finding the Fourth Proportional to 12,446.72, 18,675.12 and 12,250.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,446.72 : 18,675.12 = 12,250.16 : x
2. Step 2: Convert to fraction form
   12,446.72/18,675.12 = 12,250.16/x
3. Step 3: Cross multiply
   12,446.72x = 18,675.12 × 12,250.16
4. Step 4: Simplify right side
   12,446.72x = 228,773,208.02
5. Step 5: Solve for x
   x = 228,773,208.02/12,446.72
6. Step 6: Final answer
   x = 18,380.20