Finding the Fourth Proportional to 9,128.63, 13,687.04 and 3,582.53

Step by Step Solution

1. Step 1: Write the proportion equation
   9,128.63 : 13,687.04 = 3,582.53 : x
2. Step 2: Convert to fraction form
   9,128.63/13,687.04 = 3,582.53/x
3. Step 3: Cross multiply
   9,128.63x = 13,687.04 × 3,582.53
4. Step 4: Simplify right side
   9,128.63x = 49,034,145.06
5. Step 5: Solve for x
   x = 49,034,145.06/9,128.63
6. Step 6: Final answer
   x = 5,371.47