Finding the Fourth Proportional to 6,085.58, 9,128.39 and 3,898.58

Step by Step Solution

1. Step 1: Write the proportion equation
   6,085.58 : 9,128.39 = 3,898.58 : x
2. Step 2: Convert to fraction form
   6,085.58/9,128.39 = 3,898.58/x
3. Step 3: Cross multiply
   6,085.58x = 9,128.39 × 3,898.58
4. Step 4: Simplify right side
   6,085.58x = 35,587,693.55
5. Step 5: Solve for x
   x = 35,587,693.55/6,085.58
6. Step 6: Final answer
   x = 5,847.88