Finding the Fourth Proportional to 5,815.48, 8,705.94 and 3,499.96

Step by Step Solution

1. Step 1: Write the proportion equation
   5,815.48 : 8,705.94 = 3,499.96 : x
2. Step 2: Convert to fraction form
   5,815.48/8,705.94 = 3,499.96/x
3. Step 3: Cross multiply
   5,815.48x = 8,705.94 × 3,499.96
4. Step 4: Simplify right side
   5,815.48x = 30,470,441.76
5. Step 5: Solve for x
   x = 30,470,441.76/5,815.48
6. Step 6: Final answer
   x = 5,239.54