Finding the Fourth Proportional to 9,804.40, 13,530.17 and 5,328.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,804.40 : 13,530.17 = 5,328.20 : x
2. Step 2: Convert to fraction form
   9,804.40/13,530.17 = 5,328.20/x
3. Step 3: Cross multiply
   9,804.40x = 13,530.17 × 5,328.20
4. Step 4: Simplify right side
   9,804.40x = 72,091,498.94
5. Step 5: Solve for x
   x = 72,091,498.94/9,804.40
6. Step 6: Final answer
   x = 7,352.98