Finding the Fourth Proportional to 9,162.78, 13,745.94 and 2,922.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,162.78 : 13,745.94 = 2,922.58 : x
2. Step 2: Convert to fraction form
   9,162.78/13,745.94 = 2,922.58/x
3. Step 3: Cross multiply
   9,162.78x = 13,745.94 × 2,922.58
4. Step 4: Simplify right side
   9,162.78x = 40,173,609.33
5. Step 5: Solve for x
   x = 40,173,609.33/9,162.78
6. Step 6: Final answer
   x = 4,384.43