Finding the Fourth Proportional to 3,538.72, 5,281.32 and 3,446.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,538.72 : 5,281.32 = 3,446.56 : x
2. Step 2: Convert to fraction form
   3,538.72/5,281.32 = 3,446.56/x
3. Step 3: Cross multiply
   3,538.72x = 5,281.32 × 3,446.56
4. Step 4: Simplify right side
   3,538.72x = 18,202,386.26
5. Step 5: Solve for x
   x = 18,202,386.26/3,538.72
6. Step 6: Final answer
   x = 5,143.78