Finding the Fourth Proportional to 9,278.23, 12,804.59 and 5,243.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,278.23 : 12,804.59 = 5,243.69 : x
2. Step 2: Convert to fraction form
   9,278.23/12,804.59 = 5,243.69/x
3. Step 3: Cross multiply
   9,278.23x = 12,804.59 × 5,243.69
4. Step 4: Simplify right side
   9,278.23x = 67,143,300.54
5. Step 5: Solve for x
   x = 67,143,300.54/9,278.23
6. Step 6: Final answer
   x = 7,236.65