Finding the Fourth Proportional to 14,664.56, 22,016.82 and 12,687.08

Step by Step Solution

1. Step 1: Write the proportion equation
   14,664.56 : 22,016.82 = 12,687.08 : x
2. Step 2: Convert to fraction form
   14,664.56/22,016.82 = 12,687.08/x
3. Step 3: Cross multiply
   14,664.56x = 22,016.82 × 12,687.08
4. Step 4: Simplify right side
   14,664.56x = 279,329,156.69
5. Step 5: Solve for x
   x = 279,329,156.69/14,664.56
6. Step 6: Final answer
   x = 19,047.91