Finding the Fourth Proportional to 21,585.09, 29,787.72 and 12,024.71

Step by Step Solution

1. Step 1: Write the proportion equation
   21,585.09 : 29,787.72 = 12,024.71 : x
2. Step 2: Convert to fraction form
   21,585.09/29,787.72 = 12,024.71/x
3. Step 3: Cross multiply
   21,585.09x = 29,787.72 × 12,024.71
4. Step 4: Simplify right side
   21,585.09x = 358,188,769.03
5. Step 5: Solve for x
   x = 358,188,769.03/21,585.09
6. Step 6: Final answer
   x = 16,594.27