Finding the Fourth Proportional to 12,028.72, 18,043.82 and 4,633.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,028.72 : 18,043.82 = 4,633.20 : x
2. Step 2: Convert to fraction form
   12,028.72/18,043.82 = 4,633.20/x
3. Step 3: Cross multiply
   12,028.72x = 18,043.82 × 4,633.20
4. Step 4: Simplify right side
   12,028.72x = 83,600,626.82
5. Step 5: Solve for x
   x = 83,600,626.82/12,028.72
6. Step 6: Final answer
   x = 6,950.09