Finding the Fourth Proportional to 6,584.63, 9,086.94 and 3,931.55

Step by Step Solution

1. Step 1: Write the proportion equation
   6,584.63 : 9,086.94 = 3,931.55 : x
2. Step 2: Convert to fraction form
   6,584.63/9,086.94 = 3,931.55/x
3. Step 3: Cross multiply
   6,584.63x = 9,086.94 × 3,931.55
4. Step 4: Simplify right side
   6,584.63x = 35,725,758.96
5. Step 5: Solve for x
   x = 35,725,758.96/6,584.63
6. Step 6: Final answer
   x = 5,425.63