Finding the Fourth Proportional to 30,615.39, 42,249.22 and 17,186.67

Step by Step Solution

1. Step 1: Write the proportion equation
   30,615.39 : 42,249.22 = 17,186.67 : x
2. Step 2: Convert to fraction form
   30,615.39/42,249.22 = 17,186.67/x
3. Step 3: Cross multiply
   30,615.39x = 42,249.22 × 17,186.67
4. Step 4: Simplify right side
   30,615.39x = 726,123,401.90
5. Step 5: Solve for x
   x = 726,123,401.90/30,615.39
6. Step 6: Final answer
   x = 23,717.59