Finding the Fourth Proportional to 21,783.33, 30,061.53 and 12,352.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,783.33 : 30,061.53 = 12,352.50 : x
2. Step 2: Convert to fraction form
   21,783.33/30,061.53 = 12,352.50/x
3. Step 3: Cross multiply
   21,783.33x = 30,061.53 × 12,352.50
4. Step 4: Simplify right side
   21,783.33x = 371,335,049.33
5. Step 5: Solve for x
   x = 371,335,049.33/21,783.33
6. Step 6: Final answer
   x = 17,046.75