Finding the Fourth Proportional to 21,984.50, 30,338.61 and 12,048.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,984.50 : 30,338.61 = 12,048.50 : x
2. Step 2: Convert to fraction form
   21,984.50/30,338.61 = 12,048.50/x
3. Step 3: Cross multiply
   21,984.50x = 30,338.61 × 12,048.50
4. Step 4: Simplify right side
   21,984.50x = 365,534,742.59
5. Step 5: Solve for x
   x = 365,534,742.59/21,984.50
6. Step 6: Final answer
   x = 16,626.93