Finding the Fourth Proportional to 9,247.72, 12,761.20 and 5,268.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,247.72 : 12,761.20 = 5,268.10 : x
2. Step 2: Convert to fraction form
   9,247.72/12,761.20 = 5,268.10/x
3. Step 3: Cross multiply
   9,247.72x = 12,761.20 × 5,268.10
4. Step 4: Simplify right side
   9,247.72x = 67,227,277.72
5. Step 5: Solve for x
   x = 67,227,277.72/9,247.72
6. Step 6: Final answer
   x = 7,269.61