Finding the Fourth Proportional to 9,250.76, 12,766.39 and 5,271.77

Step by Step Solution

1. Step 1: Write the proportion equation
   9,250.76 : 12,766.39 = 5,271.77 : x
2. Step 2: Convert to fraction form
   9,250.76/12,766.39 = 5,271.77/x
3. Step 3: Cross multiply
   9,250.76x = 12,766.39 × 5,271.77
4. Step 4: Simplify right side
   9,250.76x = 67,301,394.80
5. Step 5: Solve for x
   x = 67,301,394.80/9,250.76
6. Step 6: Final answer
   x = 7,275.23