Finding the Fourth Proportional to 3,371.00, 5,081.74 and 3,145.21

Step by Step Solution

1. Step 1: Write the proportion equation
   3,371.00 : 5,081.74 = 3,145.21 : x
2. Step 2: Convert to fraction form
   3,371.00/5,081.74 = 3,145.21/x
3. Step 3: Cross multiply
   3,371.00x = 5,081.74 × 3,145.21
4. Step 4: Simplify right side
   3,371.00x = 15,983,098.33
5. Step 5: Solve for x
   x = 15,983,098.33/3,371.00
6. Step 6: Final answer
   x = 4,741.36