Finding the Fourth Proportional to 9,387.24, 12,954.33 and 5,408.27

Step by Step Solution

1. Step 1: Write the proportion equation
   9,387.24 : 12,954.33 = 5,408.27 : x
2. Step 2: Convert to fraction form
   9,387.24/12,954.33 = 5,408.27/x
3. Step 3: Cross multiply
   9,387.24x = 12,954.33 × 5,408.27
4. Step 4: Simplify right side
   9,387.24x = 70,060,498.12
5. Step 5: Solve for x
   x = 70,060,498.12/9,387.24
6. Step 6: Final answer
   x = 7,463.37