Finding the Fourth Proportional to 15,441.47, 21,309.33 and 8,367.94

Step by Step Solution

1. Step 1: Write the proportion equation
   15,441.47 : 21,309.33 = 8,367.94 : x
2. Step 2: Convert to fraction form
   15,441.47/21,309.33 = 8,367.94/x
3. Step 3: Cross multiply
   15,441.47x = 21,309.33 × 8,367.94
4. Step 4: Simplify right side
   15,441.47x = 178,315,205.83
5. Step 5: Solve for x
   x = 178,315,205.83/15,441.47
6. Step 6: Final answer
   x = 11,547.81