Finding the Fourth Proportional to 9,469.98, 13,069.35 and 5,278.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,469.98 : 13,069.35 = 5,278.50 : x
2. Step 2: Convert to fraction form
   9,469.98/13,069.35 = 5,278.50/x
3. Step 3: Cross multiply
   9,469.98x = 13,069.35 × 5,278.50
4. Step 4: Simplify right side
   9,469.98x = 68,986,563.98
5. Step 5: Solve for x
   x = 68,986,563.98/9,469.98
6. Step 6: Final answer
   x = 7,284.76