Finding the Fourth Proportional to 5,404.77, 8,109.99 and 2,118.83

Step by Step Solution

1. Step 1: Write the proportion equation
   5,404.77 : 8,109.99 = 2,118.83 : x
2. Step 2: Convert to fraction form
   5,404.77/8,109.99 = 2,118.83/x
3. Step 3: Cross multiply
   5,404.77x = 8,109.99 × 2,118.83
4. Step 4: Simplify right side
   5,404.77x = 17,183,649.56
5. Step 5: Solve for x
   x = 17,183,649.56/5,404.77
6. Step 6: Final answer
   x = 3,179.35