Finding the Fourth Proportional to 5,701.59, 8,560.89 and 3,519.45

Step by Step Solution

1. Step 1: Write the proportion equation
   5,701.59 : 8,560.89 = 3,519.45 : x
2. Step 2: Convert to fraction form
   5,701.59/8,560.89 = 3,519.45/x
3. Step 3: Cross multiply
   5,701.59x = 8,560.89 × 3,519.45
4. Step 4: Simplify right side
   5,701.59x = 30,129,624.31
5. Step 5: Solve for x
   x = 30,129,624.31/5,701.59
6. Step 6: Final answer
   x = 5,284.42