Finding the Fourth Proportional to 5,919.50, 8,169.72 and 3,435.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,919.50 : 8,169.72 = 3,435.50 : x
2. Step 2: Convert to fraction form
   5,919.50/8,169.72 = 3,435.50/x
3. Step 3: Cross multiply
   5,919.50x = 8,169.72 × 3,435.50
4. Step 4: Simplify right side
   5,919.50x = 28,067,073.06
5. Step 5: Solve for x
   x = 28,067,073.06/5,919.50
6. Step 6: Final answer
   x = 4,741.46