Finding the Fourth Proportional to 19,670.82, 27,144.61 and 10,717.89

Step by Step Solution

1. Step 1: Write the proportion equation
   19,670.82 : 27,144.61 = 10,717.89 : x
2. Step 2: Convert to fraction form
   19,670.82/27,144.61 = 10,717.89/x
3. Step 3: Cross multiply
   19,670.82x = 27,144.61 × 10,717.89
4. Step 4: Simplify right side
   19,670.82x = 290,932,944.07
5. Step 5: Solve for x
   x = 290,932,944.07/19,670.82
6. Step 6: Final answer
   x = 14,790.08