Finding the Fourth Proportional to 9,747.74, 13,451.88 and 5,271.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,747.74 : 13,451.88 = 5,271.49 : x
2. Step 2: Convert to fraction form
   9,747.74/13,451.88 = 5,271.49/x
3. Step 3: Cross multiply
   9,747.74x = 13,451.88 × 5,271.49
4. Step 4: Simplify right side
   9,747.74x = 70,911,457.83
5. Step 5: Solve for x
   x = 70,911,457.83/9,747.74
6. Step 6: Final answer
   x = 7,274.66