Finding the Fourth Proportional to 16,705, 23,051.94 and 9,151.32

Step by Step Solution

1. Step 1: Write the proportion equation
   16,705 : 23,051.94 = 9,151.32 : x
2. Step 2: Convert to fraction form
   16,705/23,051.94 = 9,151.32/x
3. Step 3: Cross multiply
   16,705x = 23,051.94 × 9,151.32
4. Step 4: Simplify right side
   16,705x = 210,955,679.56
5. Step 5: Solve for x
   x = 210,955,679.56/16,705
6. Step 6: Final answer
   x = 12,628.30