Finding the Fourth Proportional to 18,803.49, 25,960.61 and 12,100.76

Step by Step Solution

1. Step 1: Write the proportion equation
   18,803.49 : 25,960.61 = 12,100.76 : x
2. Step 2: Convert to fraction form
   18,803.49/25,960.61 = 12,100.76/x
3. Step 3: Cross multiply
   18,803.49x = 25,960.61 × 12,100.76
4. Step 4: Simplify right side
   18,803.49x = 314,143,111.06
5. Step 5: Solve for x
   x = 314,143,111.06/18,803.49
6. Step 6: Final answer
   x = 16,706.64