Finding the Fourth Proportional to 3,581.89, 5,343.75 and 3,388.13

Step by Step Solution

1. Step 1: Write the proportion equation
   3,581.89 : 5,343.75 = 3,388.13 : x
2. Step 2: Convert to fraction form
   3,581.89/5,343.75 = 3,388.13/x
3. Step 3: Cross multiply
   3,581.89x = 5,343.75 × 3,388.13
4. Step 4: Simplify right side
   3,581.89x = 18,105,319.69
5. Step 5: Solve for x
   x = 18,105,319.69/3,581.89
6. Step 6: Final answer
   x = 5,054.68