Finding the Fourth Proportional to 9,469.98, 13,068.57 and 5,278.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,469.98 : 13,068.57 = 5,278.23 : x
2. Step 2: Convert to fraction form
   9,469.98/13,068.57 = 5,278.23/x
3. Step 3: Cross multiply
   9,469.98x = 13,068.57 × 5,278.23
4. Step 4: Simplify right side
   9,469.98x = 68,978,918.23
5. Step 5: Solve for x
   x = 68,978,918.23/9,469.98
6. Step 6: Final answer
   x = 7,283.96