Finding the Fourth Proportional to 30,766.48, 42,457.77 and 16,619.33

Step by Step Solution

1. Step 1: Write the proportion equation
   30,766.48 : 42,457.77 = 16,619.33 : x
2. Step 2: Convert to fraction form
   30,766.48/42,457.77 = 16,619.33/x
3. Step 3: Cross multiply
   30,766.48x = 42,457.77 × 16,619.33
4. Step 4: Simplify right side
   30,766.48x = 705,619,690.69
5. Step 5: Solve for x
   x = 705,619,690.69/30,766.48
6. Step 6: Final answer
   x = 22,934.69