Finding the Fourth Proportional to 30,568.17, 42,188.81 and 17,144.85

Step by Step Solution

1. Step 1: Write the proportion equation
   30,568.17 : 42,188.81 = 17,144.85 : x
2. Step 2: Convert to fraction form
   30,568.17/42,188.81 = 17,144.85/x
3. Step 3: Cross multiply
   30,568.17x = 42,188.81 × 17,144.85
4. Step 4: Simplify right side
   30,568.17x = 723,320,733.40
5. Step 5: Solve for x
   x = 723,320,733.40/30,568.17
6. Step 6: Final answer
   x = 23,662.55