Finding the Fourth Proportional to 12,388.50, 18,582.78 and 3,623.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,388.50 : 18,582.78 = 3,623.52 : x
2. Step 2: Convert to fraction form
   12,388.50/18,582.78 = 3,623.52/x
3. Step 3: Cross multiply
   12,388.50x = 18,582.78 × 3,623.52
4. Step 4: Simplify right side
   12,388.50x = 67,335,074.99
5. Step 5: Solve for x
   x = 67,335,074.99/12,388.50
6. Step 6: Final answer
   x = 5,435.29