Finding the Fourth Proportional to 30,766.22, 42,457.94 and 18,028.56

Step by Step Solution

1. Step 1: Write the proportion equation
   30,766.22 : 42,457.94 = 18,028.56 : x
2. Step 2: Convert to fraction form
   30,766.22/42,457.94 = 18,028.56/x
3. Step 3: Cross multiply
   30,766.22x = 42,457.94 × 18,028.56
4. Step 4: Simplify right side
   30,766.22x = 765,455,518.77
5. Step 5: Solve for x
   x = 765,455,518.77/30,766.22
6. Step 6: Final answer
   x = 24,879.74