Finding the Fourth Proportional to 9,388.38, 12,954.42 and 5,613.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,388.38 : 12,954.42 = 5,613.06 : x
2. Step 2: Convert to fraction form
   9,388.38/12,954.42 = 5,613.06/x
3. Step 3: Cross multiply
   9,388.38x = 12,954.42 × 5,613.06
4. Step 4: Simplify right side
   9,388.38x = 72,713,936.73
5. Step 5: Solve for x
   x = 72,713,936.73/9,388.38
6. Step 6: Final answer
   x = 7,745.10