Finding the Fourth Proportional to 15,297.42, 21,109.59 and 8,582.43

Step by Step Solution

1. Step 1: Write the proportion equation
   15,297.42 : 21,109.59 = 8,582.43 : x
2. Step 2: Convert to fraction form
   15,297.42/21,109.59 = 8,582.43/x
3. Step 3: Cross multiply
   15,297.42x = 21,109.59 × 8,582.43
4. Step 4: Simplify right side
   15,297.42x = 181,171,578.50
5. Step 5: Solve for x
   x = 181,171,578.50/15,297.42
6. Step 6: Final answer
   x = 11,843.28