Finding the Fourth Proportional to 12,338.72, 18,507.76 and 4,019.36

Step by Step Solution

1. Step 1: Write the proportion equation
   12,338.72 : 18,507.76 = 4,019.36 : x
2. Step 2: Convert to fraction form
   12,338.72/18,507.76 = 4,019.36/x
3. Step 3: Cross multiply
   12,338.72x = 18,507.76 × 4,019.36
4. Step 4: Simplify right side
   12,338.72x = 74,389,350.23
5. Step 5: Solve for x
   x = 74,389,350.23/12,338.72
6. Step 6: Final answer
   x = 6,028.94