Finding the Fourth Proportional to 14,059.24, 21,095.61 and 8,216.31

Step by Step Solution

1. Step 1: Write the proportion equation
   14,059.24 : 21,095.61 = 8,216.31 : x
2. Step 2: Convert to fraction form
   14,059.24/21,095.61 = 8,216.31/x
3. Step 3: Cross multiply
   14,059.24x = 21,095.61 × 8,216.31
4. Step 4: Simplify right side
   14,059.24x = 173,328,071.40
5. Step 5: Solve for x
   x = 173,328,071.40/14,059.24
6. Step 6: Final answer
   x = 12,328.41