Finding the Fourth Proportional to 5,913.72, 8,865.77 and 2,405.37

Step by Step Solution

1. Step 1: Write the proportion equation
   5,913.72 : 8,865.77 = 2,405.37 : x
2. Step 2: Convert to fraction form
   5,913.72/8,865.77 = 2,405.37/x
3. Step 3: Cross multiply
   5,913.72x = 8,865.77 × 2,405.37
4. Step 4: Simplify right side
   5,913.72x = 21,325,400.83
5. Step 5: Solve for x
   x = 21,325,400.83/5,913.72
6. Step 6: Final answer
   x = 3,606.09