Finding the Fourth Proportional to 6,258.45, 8,637.71 and 3,607.40

Step by Step Solution

1. Step 1: Write the proportion equation
   6,258.45 : 8,637.71 = 3,607.40 : x
2. Step 2: Convert to fraction form
   6,258.45/8,637.71 = 3,607.40/x
3. Step 3: Cross multiply
   6,258.45x = 8,637.71 × 3,607.40
4. Step 4: Simplify right side
   6,258.45x = 31,159,640.88
5. Step 5: Solve for x
   x = 31,159,640.88/6,258.45
6. Step 6: Final answer
   x = 4,978.82