Finding the Fourth Proportional to 3,938.16, 5,907.15 and 3,417.33

Step by Step Solution

1. Step 1: Write the proportion equation
   3,938.16 : 5,907.15 = 3,417.33 : x
2. Step 2: Convert to fraction form
   3,938.16/5,907.15 = 3,417.33/x
3. Step 3: Cross multiply
   3,938.16x = 5,907.15 × 3,417.33
4. Step 4: Simplify right side
   3,938.16x = 20,186,680.91
5. Step 5: Solve for x
   x = 20,186,680.91/3,938.16
6. Step 6: Final answer
   x = 5,125.92