Finding the Fourth Proportional to 30,339.72, 41,868.72 and 16,910.82

Step by Step Solution

1. Step 1: Write the proportion equation
   30,339.72 : 41,868.72 = 16,910.82 : x
2. Step 2: Convert to fraction form
   30,339.72/41,868.72 = 16,910.82/x
3. Step 3: Cross multiply
   30,339.72x = 41,868.72 × 16,910.82
4. Step 4: Simplify right side
   30,339.72x = 708,034,387.55
5. Step 5: Solve for x
   x = 708,034,387.55/30,339.72
6. Step 6: Final answer
   x = 23,336.88