Finding the Fourth Proportional to 23,637.20, 32,618.89 and 12,882.15

Step by Step Solution

1. Step 1: Write the proportion equation
   23,637.20 : 32,618.89 = 12,882.15 : x
2. Step 2: Convert to fraction form
   23,637.20/32,618.89 = 12,882.15/x
3. Step 3: Cross multiply
   23,637.20x = 32,618.89 × 12,882.15
4. Step 4: Simplify right side
   23,637.20x = 420,201,413.69
5. Step 5: Solve for x
   x = 420,201,413.69/23,637.20
6. Step 6: Final answer
   x = 17,777.13