Finding the Fourth Proportional to 30,839.89, 42,559.01 and 16,692.70

Step by Step Solution

1. Step 1: Write the proportion equation
   30,839.89 : 42,559.01 = 16,692.70 : x
2. Step 2: Convert to fraction form
   30,839.89/42,559.01 = 16,692.70/x
3. Step 3: Cross multiply
   30,839.89x = 42,559.01 × 16,692.70
4. Step 4: Simplify right side
   30,839.89x = 710,424,786.23
5. Step 5: Solve for x
   x = 710,424,786.23/30,839.89
6. Step 6: Final answer
   x = 23,035.91