Finding the Fourth Proportional to 10,469.36, 15,704.01 and 2,678.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,469.36 : 15,704.01 = 2,678.15 : x
2. Step 2: Convert to fraction form
   10,469.36/15,704.01 = 2,678.15/x
3. Step 3: Cross multiply
   10,469.36x = 15,704.01 × 2,678.15
4. Step 4: Simplify right side
   10,469.36x = 42,057,615.86
5. Step 5: Solve for x
   x = 42,057,615.86/10,469.36
6. Step 6: Final answer
   x = 4,017.21