Finding the Fourth Proportional to 5,404.71, 8,111.02 and 3,559.74

Step by Step Solution

1. Step 1: Write the proportion equation
   5,404.71 : 8,111.02 = 3,559.74 : x
2. Step 2: Convert to fraction form
   5,404.71/8,111.02 = 3,559.74/x
3. Step 3: Cross multiply
   5,404.71x = 8,111.02 × 3,559.74
4. Step 4: Simplify right side
   5,404.71x = 28,873,122.33
5. Step 5: Solve for x
   x = 28,873,122.33/5,404.71
6. Step 6: Final answer
   x = 5,342.21