Finding the Fourth Proportional to 19,738.89, 27,238.52 and 10,786.47

Step by Step Solution

1. Step 1: Write the proportion equation
   19,738.89 : 27,238.52 = 10,786.47 : x
2. Step 2: Convert to fraction form
   19,738.89/27,238.52 = 10,786.47/x
3. Step 3: Cross multiply
   19,738.89x = 27,238.52 × 10,786.47
4. Step 4: Simplify right side
   19,738.89x = 293,807,478.82
5. Step 5: Solve for x
   x = 293,807,478.82/19,738.89
6. Step 6: Final answer
   x = 14,884.70