Finding the Fourth Proportional to 6,388.38, 8,815.86 and 3,593.88

Step by Step Solution

1. Step 1: Write the proportion equation
   6,388.38 : 8,815.86 = 3,593.88 : x
2. Step 2: Convert to fraction form
   6,388.38/8,815.86 = 3,593.88/x
3. Step 3: Cross multiply
   6,388.38x = 8,815.86 × 3,593.88
4. Step 4: Simplify right side
   6,388.38x = 31,683,142.94
5. Step 5: Solve for x
   x = 31,683,142.94/6,388.38
6. Step 6: Final answer
   x = 4,959.50