Finding the Fourth Proportional to 16,578.55, 22,878.76 and 9,408.93

Step by Step Solution

1. Step 1: Write the proportion equation
   16,578.55 : 22,878.76 = 9,408.93 : x
2. Step 2: Convert to fraction form
   16,578.55/22,878.76 = 9,408.93/x
3. Step 3: Cross multiply
   16,578.55x = 22,878.76 × 9,408.93
4. Step 4: Simplify right side
   16,578.55x = 215,264,651.33
5. Step 5: Solve for x
   x = 215,264,651.33/16,578.55
6. Step 6: Final answer
   x = 12,984.53