Finding the Fourth Proportional to 16,707.50, 23,056.34 and 9,154.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,707.50 : 23,056.34 = 9,154.31 : x
2. Step 2: Convert to fraction form
   16,707.50/23,056.34 = 9,154.31/x
3. Step 3: Cross multiply
   16,707.50x = 23,056.34 × 9,154.31
4. Step 4: Simplify right side
   16,707.50x = 211,064,722.77
5. Step 5: Solve for x
   x = 211,064,722.77/16,707.50
6. Step 6: Final answer
   x = 12,632.94