Finding the Fourth Proportional to 3,619.52, 4,990.56 and 3,059

Step by Step Solution

1. Step 1: Write the proportion equation
   3,619.52 : 4,990.56 = 3,059 : x
2. Step 2: Convert to fraction form
   3,619.52/4,990.56 = 3,059/x
3. Step 3: Cross multiply
   3,619.52x = 4,990.56 × 3,059
4. Step 4: Simplify right side
   3,619.52x = 15,266,123.04
5. Step 5: Solve for x
   x = 15,266,123.04/3,619.52
6. Step 6: Final answer
   x = 4,217.72