Finding the Fourth Proportional to 14,456.62, 21,684.59 and 6,665.43

Step by Step Solution

1. Step 1: Write the proportion equation
   14,456.62 : 21,684.59 = 6,665.43 : x
2. Step 2: Convert to fraction form
   14,456.62/21,684.59 = 6,665.43/x
3. Step 3: Cross multiply
   14,456.62x = 21,684.59 × 6,665.43
4. Step 4: Simplify right side
   14,456.62x = 144,537,116.72
5. Step 5: Solve for x
   x = 144,537,116.72/14,456.62
6. Step 6: Final answer
   x = 9,997.99