Finding the Fourth Proportional to 21,616.31, 32,439.05 and 8,467.04

Step by Step Solution

1. Step 1: Write the proportion equation
   21,616.31 : 32,439.05 = 8,467.04 : x
2. Step 2: Convert to fraction form
   21,616.31/32,439.05 = 8,467.04/x
3. Step 3: Cross multiply
   21,616.31x = 32,439.05 × 8,467.04
4. Step 4: Simplify right side
   21,616.31x = 274,662,733.91
5. Step 5: Solve for x
   x = 274,662,733.91/21,616.31
6. Step 6: Final answer
   x = 12,706.27