Finding the Fourth Proportional to 5,436.33, 7,500.59 and 3,311.91

Step by Step Solution

1. Step 1: Write the proportion equation
   5,436.33 : 7,500.59 = 3,311.91 : x
2. Step 2: Convert to fraction form
   5,436.33/7,500.59 = 3,311.91/x
3. Step 3: Cross multiply
   5,436.33x = 7,500.59 × 3,311.91
4. Step 4: Simplify right side
   5,436.33x = 24,841,291.33
5. Step 5: Solve for x
   x = 24,841,291.33/5,436.33
6. Step 6: Final answer
   x = 4,569.50