Finding the Fourth Proportional to 21,654.87, 29,883.50 and 12,223.83

Step by Step Solution

1. Step 1: Write the proportion equation
   21,654.87 : 29,883.50 = 12,223.83 : x
2. Step 2: Convert to fraction form
   21,654.87/29,883.50 = 12,223.83/x
3. Step 3: Cross multiply
   21,654.87x = 29,883.50 × 12,223.83
4. Step 4: Simplify right side
   21,654.87x = 365,290,762.69
5. Step 5: Solve for x
   x = 365,290,762.69/21,654.87
6. Step 6: Final answer
   x = 16,868.76