Finding the Fourth Proportional to 16,617, 22,931.94 and 9,165.48

Step by Step Solution

1. Step 1: Write the proportion equation
   16,617 : 22,931.94 = 9,165.48 : x
2. Step 2: Convert to fraction form
   16,617/22,931.94 = 9,165.48/x
3. Step 3: Cross multiply
   16,617x = 22,931.94 × 9,165.48
4. Step 4: Simplify right side
   16,617x = 210,182,237.43
5. Step 5: Solve for x
   x = 210,182,237.43/16,617
6. Step 6: Final answer
   x = 12,648.63