Finding the Fourth Proportional to 14,665.12, 21,834.51 and 14,458.09

Step by Step Solution

1. Step 1: Write the proportion equation
   14,665.12 : 21,834.51 = 14,458.09 : x
2. Step 2: Convert to fraction form
   14,665.12/21,834.51 = 14,458.09/x
3. Step 3: Cross multiply
   14,665.12x = 21,834.51 × 14,458.09
4. Step 4: Simplify right side
   14,665.12x = 315,685,310.69
5. Step 5: Solve for x
   x = 315,685,310.69/14,665.12
6. Step 6: Final answer
   x = 21,526.27