Finding the Fourth Proportional to 9,249.34, 12,764.43 and 5,271.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,249.34 : 12,764.43 = 5,271.07 : x
2. Step 2: Convert to fraction form
   9,249.34/12,764.43 = 5,271.07/x
3. Step 3: Cross multiply
   9,249.34x = 12,764.43 × 5,271.07
4. Step 4: Simplify right side
   9,249.34x = 67,282,204.04
5. Step 5: Solve for x
   x = 67,282,204.04/9,249.34
6. Step 6: Final answer
   x = 7,274.27