Finding the Fourth Proportional to 16,981.40, 23,434.41 and 10,611.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,981.40 : 23,434.41 = 10,611.69 : x
2. Step 2: Convert to fraction form
   16,981.40/23,434.41 = 10,611.69/x
3. Step 3: Cross multiply
   16,981.40x = 23,434.41 × 10,611.69
4. Step 4: Simplify right side
   16,981.40x = 248,678,577.08
5. Step 5: Solve for x
   x = 248,678,577.08/16,981.40
6. Step 6: Final answer
   x = 14,644.18