Finding the Fourth Proportional to 21,564.46, 29,758.65 and 12,133

Step by Step Solution

1. Step 1: Write the proportion equation
   21,564.46 : 29,758.65 = 12,133 : x
2. Step 2: Convert to fraction form
   21,564.46/29,758.65 = 12,133/x
3. Step 3: Cross multiply
   21,564.46x = 29,758.65 × 12,133
4. Step 4: Simplify right side
   21,564.46x = 361,061,700.45
5. Step 5: Solve for x
   x = 361,061,700.45/21,564.46
6. Step 6: Final answer
   x = 16,743.37