Finding the Fourth Proportional to 3,627.18, 5,028.89 and 3,555.90

Step by Step Solution

1. Step 1: Write the proportion equation
   3,627.18 : 5,028.89 = 3,555.90 : x
2. Step 2: Convert to fraction form
   3,627.18/5,028.89 = 3,555.90/x
3. Step 3: Cross multiply
   3,627.18x = 5,028.89 × 3,555.90
4. Step 4: Simplify right side
   3,627.18x = 17,882,212.17
5. Step 5: Solve for x
   x = 17,882,212.17/3,627.18
6. Step 6: Final answer
   x = 4,930.06