Finding the Fourth Proportional to 11,417.57, 17,118.30 and 4,391.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,417.57 : 17,118.30 = 4,391.69 : x
2. Step 2: Convert to fraction form
   11,417.57/17,118.30 = 4,391.69/x
3. Step 3: Cross multiply
   11,417.57x = 17,118.30 × 4,391.69
4. Step 4: Simplify right side
   11,417.57x = 75,178,181.34
5. Step 5: Solve for x
   x = 75,178,181.34/11,417.57
6. Step 6: Final answer
   x = 6,584.43