Finding the Fourth Proportional to 6,391.50, 8,820.63 and 3,597.18

Step by Step Solution

1. Step 1: Write the proportion equation
   6,391.50 : 8,820.63 = 3,597.18 : x
2. Step 2: Convert to fraction form
   6,391.50/8,820.63 = 3,597.18/x
3. Step 3: Cross multiply
   6,391.50x = 8,820.63 × 3,597.18
4. Step 4: Simplify right side
   6,391.50x = 31,729,393.82
5. Step 5: Solve for x
   x = 31,729,393.82/6,391.50
6. Step 6: Final answer
   x = 4,964.31