Finding the Fourth Proportional to 19,638.50, 27,101.33 and 10,685.98

Step by Step Solution

1. Step 1: Write the proportion equation
   19,638.50 : 27,101.33 = 10,685.98 : x
2. Step 2: Convert to fraction form
   19,638.50/27,101.33 = 10,685.98/x
3. Step 3: Cross multiply
   19,638.50x = 27,101.33 × 10,685.98
4. Step 4: Simplify right side
   19,638.50x = 289,604,198.54
5. Step 5: Solve for x
   x = 289,604,198.54/19,638.50
6. Step 6: Final answer
   x = 14,746.76