Finding the Fourth Proportional to 5,764.87, 8,637.59 and 3,811.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,764.87 : 8,637.59 = 3,811.15 : x
2. Step 2: Convert to fraction form
   5,764.87/8,637.59 = 3,811.15/x
3. Step 3: Cross multiply
   5,764.87x = 8,637.59 × 3,811.15
4. Step 4: Simplify right side
   5,764.87x = 32,919,150.02
5. Step 5: Solve for x
   x = 32,919,150.02/5,764.87
6. Step 6: Final answer
   x = 5,710.30