Finding the Fourth Proportional to 9,353.18, 12,910.09 and 5,528.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,353.18 : 12,910.09 = 5,528.36 : x
2. Step 2: Convert to fraction form
   9,353.18/12,910.09 = 5,528.36/x
3. Step 3: Cross multiply
   9,353.18x = 12,910.09 × 5,528.36
4. Step 4: Simplify right side
   9,353.18x = 71,371,625.15
5. Step 5: Solve for x
   x = 71,371,625.15/9,353.18
6. Step 6: Final answer
   x = 7,630.73