Finding the Fourth Proportional to 16,635.34, 22,956.18 and 9,917.51

Step by Step Solution

1. Step 1: Write the proportion equation
   16,635.34 : 22,956.18 = 9,917.51 : x
2. Step 2: Convert to fraction form
   16,635.34/22,956.18 = 9,917.51/x
3. Step 3: Cross multiply
   16,635.34x = 22,956.18 × 9,917.51
4. Step 4: Simplify right side
   16,635.34x = 227,668,144.71
5. Step 5: Solve for x
   x = 227,668,144.71/16,635.34
6. Step 6: Final answer
   x = 13,685.81