Finding the Fourth Proportional to 30,128.55, 41,579.82 and 16,704.09

Step by Step Solution

1. Step 1: Write the proportion equation
   30,128.55 : 41,579.82 = 16,704.09 : x
2. Step 2: Convert to fraction form
   30,128.55/41,579.82 = 16,704.09/x
3. Step 3: Cross multiply
   30,128.55x = 41,579.82 × 16,704.09
4. Step 4: Simplify right side
   30,128.55x = 694,553,055.46
5. Step 5: Solve for x
   x = 694,553,055.46/30,128.55
6. Step 6: Final answer
   x = 23,052.99