Finding the Fourth Proportional to 6,173.61, 8,522.31 and 3,938.41

Step by Step Solution

1. Step 1: Write the proportion equation
   6,173.61 : 8,522.31 = 3,938.41 : x
2. Step 2: Convert to fraction form
   6,173.61/8,522.31 = 3,938.41/x
3. Step 3: Cross multiply
   6,173.61x = 8,522.31 × 3,938.41
4. Step 4: Simplify right side
   6,173.61x = 33,564,350.93
5. Step 5: Solve for x
   x = 33,564,350.93/6,173.61
6. Step 6: Final answer
   x = 5,436.75