Finding the Fourth Proportional to 5,856.12, 8,081.60 and 3,499.61

Step by Step Solution

1. Step 1: Write the proportion equation
   5,856.12 : 8,081.60 = 3,499.61 : x
2. Step 2: Convert to fraction form
   5,856.12/8,081.60 = 3,499.61/x
3. Step 3: Cross multiply
   5,856.12x = 8,081.60 × 3,499.61
4. Step 4: Simplify right side
   5,856.12x = 28,282,390.27
5. Step 5: Solve for x
   x = 28,282,390.27/5,856.12
6. Step 6: Final answer
   x = 4,829.54