Finding the Fourth Proportional to 7,262.61, 10,019.49 and 5,268.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,262.61 : 10,019.49 = 5,268.78 : x
2. Step 2: Convert to fraction form
   7,262.61/10,019.49 = 5,268.78/x
3. Step 3: Cross multiply
   7,262.61x = 10,019.49 × 5,268.78
4. Step 4: Simplify right side
   7,262.61x = 52,790,488.52
5. Step 5: Solve for x
   x = 52,790,488.52/7,262.61
6. Step 6: Final answer
   x = 7,268.80