Finding the Fourth Proportional to 12,650.22, 17,453.90 and 8,172.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,650.22 : 17,453.90 = 8,172.34 : x
2. Step 2: Convert to fraction form
   12,650.22/17,453.90 = 8,172.34/x
3. Step 3: Cross multiply
   12,650.22x = 17,453.90 × 8,172.34
4. Step 4: Simplify right side
   12,650.22x = 142,639,181.92
5. Step 5: Solve for x
   x = 142,639,181.92/12,650.22
6. Step 6: Final answer
   x = 11,275.63