Finding the Fourth Proportional to 30,877.24, 42,610.77 and 16,730.09

Step by Step Solution

1. Step 1: Write the proportion equation
   30,877.24 : 42,610.77 = 16,730.09 : x
2. Step 2: Convert to fraction form
   30,877.24/42,610.77 = 16,730.09/x
3. Step 3: Cross multiply
   30,877.24x = 42,610.77 × 16,730.09
4. Step 4: Simplify right side
   30,877.24x = 712,882,123.60
5. Step 5: Solve for x
   x = 712,882,123.60/30,877.24
6. Step 6: Final answer
   x = 23,087.63