Finding the Fourth Proportional to 6,938.60, 9,575.42 and 3,954.15

Step by Step Solution

1. Step 1: Write the proportion equation
   6,938.60 : 9,575.42 = 3,954.15 : x
2. Step 2: Convert to fraction form
   6,938.60/9,575.42 = 3,954.15/x
3. Step 3: Cross multiply
   6,938.60x = 9,575.42 × 3,954.15
4. Step 4: Simplify right side
   6,938.60x = 37,862,627.22
5. Step 5: Solve for x
   x = 37,862,627.22/6,938.60
6. Step 6: Final answer
   x = 5,456.81