Finding the Fourth Proportional to 17,559.87, 26,339.83 and 7,171.62

Step by Step Solution

1. Step 1: Write the proportion equation
   17,559.87 : 26,339.83 = 7,171.62 : x
2. Step 2: Convert to fraction form
   17,559.87/26,339.83 = 7,171.62/x
3. Step 3: Cross multiply
   17,559.87x = 26,339.83 × 7,171.62
4. Step 4: Simplify right side
   17,559.87x = 188,899,170.86
5. Step 5: Solve for x
   x = 188,899,170.86/17,559.87
6. Step 6: Final answer
   x = 10,757.44