Finding the Fourth Proportional to 23,628.65, 32,608.89 and 13,556.99

Step by Step Solution

1. Step 1: Write the proportion equation
   23,628.65 : 32,608.89 = 13,556.99 : x
2. Step 2: Convert to fraction form
   23,628.65/32,608.89 = 13,556.99/x
3. Step 3: Cross multiply
   23,628.65x = 32,608.89 × 13,556.99
4. Step 4: Simplify right side
   23,628.65x = 442,078,477.16
5. Step 5: Solve for x
   x = 442,078,477.16/23,628.65
6. Step 6: Final answer
   x = 18,709.43