Finding the Fourth Proportional to 9,268.53, 12,791.49 and 5,290.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,268.53 : 12,791.49 = 5,290.25 : x
2. Step 2: Convert to fraction form
   9,268.53/12,791.49 = 5,290.25/x
3. Step 3: Cross multiply
   9,268.53x = 12,791.49 × 5,290.25
4. Step 4: Simplify right side
   9,268.53x = 67,670,096.18
5. Step 5: Solve for x
   x = 67,670,096.18/9,268.53
6. Step 6: Final answer
   x = 7,301.06