Finding the Fourth Proportional to 12,050.31, 18,078.10 and 3,616.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,050.31 : 18,078.10 = 3,616.46 : x
2. Step 2: Convert to fraction form
   12,050.31/18,078.10 = 3,616.46/x
3. Step 3: Cross multiply
   12,050.31x = 18,078.10 × 3,616.46
4. Step 4: Simplify right side
   12,050.31x = 65,378,689.37
5. Step 5: Solve for x
   x = 65,378,689.37/12,050.31
6. Step 6: Final answer
   x = 5,425.48