Finding the Fourth Proportional to 17,417.69, 26,137.49 and 7,422.42

Step by Step Solution

1. Step 1: Write the proportion equation
   17,417.69 : 26,137.49 = 7,422.42 : x
2. Step 2: Convert to fraction form
   17,417.69/26,137.49 = 7,422.42/x
3. Step 3: Cross multiply
   17,417.69x = 26,137.49 × 7,422.42
4. Step 4: Simplify right side
   17,417.69x = 194,003,391.41
5. Step 5: Solve for x
   x = 194,003,391.41/17,417.69
6. Step 6: Final answer
   x = 11,138.30