Finding the Fourth Proportional to 19,933.94, 27,510.78 and 14,889.40

Step by Step Solution

1. Step 1: Write the proportion equation
   19,933.94 : 27,510.78 = 14,889.40 : x
2. Step 2: Convert to fraction form
   19,933.94/27,510.78 = 14,889.40/x
3. Step 3: Cross multiply
   19,933.94x = 27,510.78 × 14,889.40
4. Step 4: Simplify right side
   19,933.94x = 409,619,007.73
5. Step 5: Solve for x
   x = 409,619,007.73/19,933.94
6. Step 6: Final answer
   x = 20,548.82