Finding the Fourth Proportional to 12,388.88, 18,587.04 and 3,623.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,388.88 : 18,587.04 = 3,623.84 : x
2. Step 2: Convert to fraction form
   12,388.88/18,587.04 = 3,623.84/x
3. Step 3: Cross multiply
   12,388.88x = 18,587.04 × 3,623.84
4. Step 4: Simplify right side
   12,388.88x = 67,356,459.03
5. Step 5: Solve for x
   x = 67,356,459.03/12,388.88
6. Step 6: Final answer
   x = 5,436.85