Finding the Fourth Proportional to 12,418.50, 18,628.83 and 3,184.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,418.50 : 18,628.83 = 3,184.50 : x
2. Step 2: Convert to fraction form
   12,418.50/18,628.83 = 3,184.50/x
3. Step 3: Cross multiply
   12,418.50x = 18,628.83 × 3,184.50
4. Step 4: Simplify right side
   12,418.50x = 59,323,509.14
5. Step 5: Solve for x
   x = 59,323,509.14/12,418.50
6. Step 6: Final answer
   x = 4,777.03