Finding the Fourth Proportional to 4,043.61, 5,581.98 and 3,145.32

Step by Step Solution

1. Step 1: Write the proportion equation
   4,043.61 : 5,581.98 = 3,145.32 : x
2. Step 2: Convert to fraction form
   4,043.61/5,581.98 = 3,145.32/x
3. Step 3: Cross multiply
   4,043.61x = 5,581.98 × 3,145.32
4. Step 4: Simplify right side
   4,043.61x = 17,557,113.33
5. Step 5: Solve for x
   x = 17,557,113.33/4,043.61
6. Step 6: Final answer
   x = 4,341.94