Finding the Fourth Proportional to 9,804.97, 13,530.85 and 5,328.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,804.97 : 13,530.85 = 5,328.72 : x
2. Step 2: Convert to fraction form
   9,804.97/13,530.85 = 5,328.72/x
3. Step 3: Cross multiply
   9,804.97x = 13,530.85 × 5,328.72
4. Step 4: Simplify right side
   9,804.97x = 72,102,111.01
5. Step 5: Solve for x
   x = 72,102,111.01/9,804.97
6. Step 6: Final answer
   x = 7,353.63