Finding the Fourth Proportional to 30,809.82, 42,517.56 and 17,383.92

Step by Step Solution

1. Step 1: Write the proportion equation
   30,809.82 : 42,517.56 = 17,383.92 : x
2. Step 2: Convert to fraction form
   30,809.82/42,517.56 = 17,383.92/x
3. Step 3: Cross multiply
   30,809.82x = 42,517.56 × 17,383.92
4. Step 4: Simplify right side
   30,809.82x = 739,121,669.60
5. Step 5: Solve for x
   x = 739,121,669.60/30,809.82
6. Step 6: Final answer
   x = 23,989.81