Finding the Fourth Proportional to 14,105.82, 21,172.50 and 6,715.38

Step by Step Solution

1. Step 1: Write the proportion equation
   14,105.82 : 21,172.50 = 6,715.38 : x
2. Step 2: Convert to fraction form
   14,105.82/21,172.50 = 6,715.38/x
3. Step 3: Cross multiply
   14,105.82x = 21,172.50 × 6,715.38
4. Step 4: Simplify right side
   14,105.82x = 142,181,383.05
5. Step 5: Solve for x
   x = 142,181,383.05/14,105.82
6. Step 6: Final answer
   x = 10,079.63