Finding the Fourth Proportional to 16,638.59, 22,955.73 and 10,976.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,638.59 : 22,955.73 = 10,976.15 : x
2. Step 2: Convert to fraction form
   16,638.59/22,955.73 = 10,976.15/x
3. Step 3: Cross multiply
   16,638.59x = 22,955.73 × 10,976.15
4. Step 4: Simplify right side
   16,638.59x = 251,965,421.06
5. Step 5: Solve for x
   x = 251,965,421.06/16,638.59
6. Step 6: Final answer
   x = 15,143.44