Finding the Fourth Proportional to 9,556.76, 13,187.88 and 5,308.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,556.76 : 13,187.88 = 5,308.09 : x
2. Step 2: Convert to fraction form
   9,556.76/13,187.88 = 5,308.09/x
3. Step 3: Cross multiply
   9,556.76x = 13,187.88 × 5,308.09
4. Step 4: Simplify right side
   9,556.76x = 70,002,453.95
5. Step 5: Solve for x
   x = 70,002,453.95/9,556.76
6. Step 6: Final answer
   x = 7,324.91