Finding the Fourth Proportional to 9,078.24, 13,608.18 and 3,528.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,078.24 : 13,608.18 = 3,528.12 : x
2. Step 2: Convert to fraction form
   9,078.24/13,608.18 = 3,528.12/x
3. Step 3: Cross multiply
   9,078.24x = 13,608.18 × 3,528.12
4. Step 4: Simplify right side
   9,078.24x = 48,011,292.02
5. Step 5: Solve for x
   x = 48,011,292.02/9,078.24
6. Step 6: Final answer
   x = 5,288.61