Finding the Fourth Proportional to 3,451.77, 5,196.33 and 3,145.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,451.77 : 5,196.33 = 3,145.59 : x
2. Step 2: Convert to fraction form
   3,451.77/5,196.33 = 3,145.59/x
3. Step 3: Cross multiply
   3,451.77x = 5,196.33 × 3,145.59
4. Step 4: Simplify right side
   3,451.77x = 16,345,523.68
5. Step 5: Solve for x
   x = 16,345,523.68/3,451.77
6. Step 6: Final answer
   x = 4,735.40