Finding the Fourth Proportional to 16,812.50, 23,201.10 and 9,258.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,812.50 : 23,201.10 = 9,258.69 : x
2. Step 2: Convert to fraction form
   16,812.50/23,201.10 = 9,258.69/x
3. Step 3: Cross multiply
   16,812.50x = 23,201.10 × 9,258.69
4. Step 4: Simplify right side
   16,812.50x = 214,811,792.56
5. Step 5: Solve for x
   x = 214,811,792.56/16,812.50
6. Step 6: Final answer
   x = 12,776.91