Finding the Fourth Proportional to 9,078.75, 12,528.81 and 5,541.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,078.75 : 12,528.81 = 5,541.48 : x
2. Step 2: Convert to fraction form
   9,078.75/12,528.81 = 5,541.48/x
3. Step 3: Cross multiply
   9,078.75x = 12,528.81 × 5,541.48
4. Step 4: Simplify right side
   9,078.75x = 69,428,150.04
5. Step 5: Solve for x
   x = 69,428,150.04/9,078.75
6. Step 6: Final answer
   x = 7,647.32