Finding the Fourth Proportional to 6,389.80, 8,817.83 and 3,595.30

Step by Step Solution

1. Step 1: Write the proportion equation
   6,389.80 : 8,817.83 = 3,595.30 : x
2. Step 2: Convert to fraction form
   6,389.80/8,817.83 = 3,595.30/x
3. Step 3: Cross multiply
   6,389.80x = 8,817.83 × 3,595.30
4. Step 4: Simplify right side
   6,389.80x = 31,702,744.20
5. Step 5: Solve for x
   x = 31,702,744.20/6,389.80
6. Step 6: Final answer
   x = 4,961.46