Finding the Fourth Proportional to 12,162.72, 18,246.64 and 3,845.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,162.72 : 18,246.64 = 3,845.12 : x
2. Step 2: Convert to fraction form
   12,162.72/18,246.64 = 3,845.12/x
3. Step 3: Cross multiply
   12,162.72x = 18,246.64 × 3,845.12
4. Step 4: Simplify right side
   12,162.72x = 70,160,520.40
5. Step 5: Solve for x
   x = 70,160,520.40/12,162.72
6. Step 6: Final answer
   x = 5,768.49