Finding the Fourth Proportional to 5,807.49, 8,717.37 and 3,617.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,807.49 : 8,717.37 = 3,617.72 : x
2. Step 2: Convert to fraction form
   5,807.49/8,717.37 = 3,617.72/x
3. Step 3: Cross multiply
   5,807.49x = 8,717.37 × 3,617.72
4. Step 4: Simplify right side
   5,807.49x = 31,537,003.80
5. Step 5: Solve for x
   x = 31,537,003.80/5,807.49
6. Step 6: Final answer
   x = 5,430.40