Finding the Fourth Proportional to 12,238.72, 18,358.14 and 3,004.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,238.72 : 18,358.14 = 3,004.72 : x
2. Step 2: Convert to fraction form
   12,238.72/18,358.14 = 3,004.72/x
3. Step 3: Cross multiply
   12,238.72x = 18,358.14 × 3,004.72
4. Step 4: Simplify right side
   12,238.72x = 55,161,070.42
5. Step 5: Solve for x
   x = 55,161,070.42/12,238.72
6. Step 6: Final answer
   x = 4,507.09