Finding the Fourth Proportional to 10,934.04, 16,397.03 and 3,912.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,934.04 : 16,397.03 = 3,912.15 : x
2. Step 2: Convert to fraction form
   10,934.04/16,397.03 = 3,912.15/x
3. Step 3: Cross multiply
   10,934.04x = 16,397.03 × 3,912.15
4. Step 4: Simplify right side
   10,934.04x = 64,147,640.91
5. Step 5: Solve for x
   x = 64,147,640.91/10,934.04
6. Step 6: Final answer
   x = 5,866.78