Finding the Fourth Proportional to 5,859.20, 8,083.76 and 3,500.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,859.20 : 8,083.76 = 3,500.72 : x
2. Step 2: Convert to fraction form
   5,859.20/8,083.76 = 3,500.72/x
3. Step 3: Cross multiply
   5,859.20x = 8,083.76 × 3,500.72
4. Step 4: Simplify right side
   5,859.20x = 28,298,980.31
5. Step 5: Solve for x
   x = 28,298,980.31/5,859.20
6. Step 6: Final answer
   x = 4,829.84