Finding the Fourth Proportional to 12,236.72, 18,355.14 and 3,002.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,236.72 : 18,355.14 = 3,002.72 : x
2. Step 2: Convert to fraction form
   12,236.72/18,355.14 = 3,002.72/x
3. Step 3: Cross multiply
   12,236.72x = 18,355.14 × 3,002.72
4. Step 4: Simplify right side
   12,236.72x = 55,115,345.98
5. Step 5: Solve for x
   x = 55,115,345.98/12,236.72
6. Step 6: Final answer
   x = 4,504.09