Finding the Fourth Proportional to 21,068.73, 29,073.06 and 12,114.45

Step by Step Solution

1. Step 1: Write the proportion equation
   21,068.73 : 29,073.06 = 12,114.45 : x
2. Step 2: Convert to fraction form
   21,068.73/29,073.06 = 12,114.45/x
3. Step 3: Cross multiply
   21,068.73x = 29,073.06 × 12,114.45
4. Step 4: Simplify right side
   21,068.73x = 352,204,131.72
5. Step 5: Solve for x
   x = 352,204,131.72/21,068.73
6. Step 6: Final answer
   x = 16,716.91