Finding the Fourth Proportional to 5,593.27, 7,721.73 and 3,919.81

Step by Step Solution

1. Step 1: Write the proportion equation
   5,593.27 : 7,721.73 = 3,919.81 : x
2. Step 2: Convert to fraction form
   5,593.27/7,721.73 = 3,919.81/x
3. Step 3: Cross multiply
   5,593.27x = 7,721.73 × 3,919.81
4. Step 4: Simplify right side
   5,593.27x = 30,267,714.47
5. Step 5: Solve for x
   x = 30,267,714.47/5,593.27
6. Step 6: Final answer
   x = 5,411.45