Finding the Fourth Proportional to 6,387.69, 9,562.98 and 3,915.03

Step by Step Solution

1. Step 1: Write the proportion equation
   6,387.69 : 9,562.98 = 3,915.03 : x
2. Step 2: Convert to fraction form
   6,387.69/9,562.98 = 3,915.03/x
3. Step 3: Cross multiply
   6,387.69x = 9,562.98 × 3,915.03
4. Step 4: Simplify right side
   6,387.69x = 37,439,353.59
5. Step 5: Solve for x
   x = 37,439,353.59/6,387.69
6. Step 6: Final answer
   x = 5,861.17