Finding the Fourth Proportional to 12,487.73, 18,732.84 and 3,603.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,487.73 : 18,732.84 = 3,603.27 : x
2. Step 2: Convert to fraction form
   12,487.73/18,732.84 = 3,603.27/x
3. Step 3: Cross multiply
   12,487.73x = 18,732.84 × 3,603.27
4. Step 4: Simplify right side
   12,487.73x = 67,499,480.39
5. Step 5: Solve for x
   x = 67,499,480.39/12,487.73
6. Step 6: Final answer
   x = 5,405.27