Finding the Fourth Proportional to 6,405.38, 8,839.42 and 3,610.88

Step by Step Solution

1. Step 1: Write the proportion equation
   6,405.38 : 8,839.42 = 3,610.88 : x
2. Step 2: Convert to fraction form
   6,405.38/8,839.42 = 3,610.88/x
3. Step 3: Cross multiply
   6,405.38x = 8,839.42 × 3,610.88
4. Step 4: Simplify right side
   6,405.38x = 31,918,084.89
5. Step 5: Solve for x
   x = 31,918,084.89/6,405.38
6. Step 6: Final answer
   x = 4,983.01