Finding the Fourth Proportional to 18,636.02, 25,719.41 and 10,680.82

Step by Step Solution

1. Step 1: Write the proportion equation
   18,636.02 : 25,719.41 = 10,680.82 : x
2. Step 2: Convert to fraction form
   18,636.02/25,719.41 = 10,680.82/x
3. Step 3: Cross multiply
   18,636.02x = 25,719.41 × 10,680.82
4. Step 4: Simplify right side
   18,636.02x = 274,704,388.72
5. Step 5: Solve for x
   x = 274,704,388.72/18,636.02
6. Step 6: Final answer
   x = 14,740.51