Finding the Fourth Proportional to 9,250.54, 12,765.72 and 5,271.66

Step by Step Solution

1. Step 1: Write the proportion equation
   9,250.54 : 12,765.72 = 5,271.66 : x
2. Step 2: Convert to fraction form
   9,250.54/12,765.72 = 5,271.66/x
3. Step 3: Cross multiply
   9,250.54x = 12,765.72 × 5,271.66
4. Step 4: Simplify right side
   9,250.54x = 67,296,535.50
5. Step 5: Solve for x
   x = 67,296,535.50/9,250.54
6. Step 6: Final answer
   x = 7,274.88