Finding the Fourth Proportional to 11,648.20, 17,467.18 and 3,438.28

Step by Step Solution

1. Step 1: Write the proportion equation
   11,648.20 : 17,467.18 = 3,438.28 : x
2. Step 2: Convert to fraction form
   11,648.20/17,467.18 = 3,438.28/x
3. Step 3: Cross multiply
   11,648.20x = 17,467.18 × 3,438.28
4. Step 4: Simplify right side
   11,648.20x = 60,057,055.65
5. Step 5: Solve for x
   x = 60,057,055.65/11,648.20
6. Step 6: Final answer
   x = 5,155.91