Finding the Fourth Proportional to 30,826.01, 42,539.92 and 16,678.82

Step by Step Solution

1. Step 1: Write the proportion equation
   30,826.01 : 42,539.92 = 16,678.82 : x
2. Step 2: Convert to fraction form
   30,826.01/42,539.92 = 16,678.82/x
3. Step 3: Cross multiply
   30,826.01x = 42,539.92 × 16,678.82
4. Step 4: Simplify right side
   30,826.01x = 709,515,733.15
5. Step 5: Solve for x
   x = 709,515,733.15/30,826.01
6. Step 6: Final answer
   x = 23,016.79