Finding the Fourth Proportional to 16,706.72, 23,056.25 and 9,153.07

Step by Step Solution

1. Step 1: Write the proportion equation
   16,706.72 : 23,056.25 = 9,153.07 : x
2. Step 2: Convert to fraction form
   16,706.72/23,056.25 = 9,153.07/x
3. Step 3: Cross multiply
   16,706.72x = 23,056.25 × 9,153.07
4. Step 4: Simplify right side
   16,706.72x = 211,035,366.78
5. Step 5: Solve for x
   x = 211,035,366.78/16,706.72
6. Step 6: Final answer
   x = 12,631.76