Finding the Fourth Proportional to 3,528.72, 5,286.60 and 3,036.24

Step by Step Solution

1. Step 1: Write the proportion equation
   3,528.72 : 5,286.60 = 3,036.24 : x
2. Step 2: Convert to fraction form
   3,528.72/5,286.60 = 3,036.24/x
3. Step 3: Cross multiply
   3,528.72x = 5,286.60 × 3,036.24
4. Step 4: Simplify right side
   3,528.72x = 16,051,386.38
5. Step 5: Solve for x
   x = 16,051,386.38/3,528.72
6. Step 6: Final answer
   x = 4,548.78