Finding the Fourth Proportional to 30,818.82, 42,529.89 and 16,671.67

Step by Step Solution

1. Step 1: Write the proportion equation
   30,818.82 : 42,529.89 = 16,671.67 : x
2. Step 2: Convert to fraction form
   30,818.82/42,529.89 = 16,671.67/x
3. Step 3: Cross multiply
   30,818.82x = 42,529.89 × 16,671.67
4. Step 4: Simplify right side
   30,818.82x = 709,044,247.41
5. Step 5: Solve for x
   x = 709,044,247.41/30,818.82
6. Step 6: Final answer
   x = 23,006.86