Finding the Fourth Proportional to 16,706.50, 23,054.09 and 9,151.43

Step by Step Solution

1. Step 1: Write the proportion equation
   16,706.50 : 23,054.09 = 9,151.43 : x
2. Step 2: Convert to fraction form
   16,706.50/23,054.09 = 9,151.43/x
3. Step 3: Cross multiply
   16,706.50x = 23,054.09 × 9,151.43
4. Step 4: Simplify right side
   16,706.50x = 210,977,729.82
5. Step 5: Solve for x
   x = 210,977,729.82/16,706.50
6. Step 6: Final answer
   x = 12,628.48