Finding the Fourth Proportional to 5,857.69, 8,085.96 and 3,499.39

Step by Step Solution

1. Step 1: Write the proportion equation
   5,857.69 : 8,085.96 = 3,499.39 : x
2. Step 2: Convert to fraction form
   5,857.69/8,085.96 = 3,499.39/x
3. Step 3: Cross multiply
   5,857.69x = 8,085.96 × 3,499.39
4. Step 4: Simplify right side
   5,857.69x = 28,295,927.56
5. Step 5: Solve for x
   x = 28,295,927.56/5,857.69
6. Step 6: Final answer
   x = 4,830.56