Finding the Fourth Proportional to 12,458.34, 17,193.72 and 9,309.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,458.34 : 17,193.72 = 9,309.06 : x
2. Step 2: Convert to fraction form
   12,458.34/17,193.72 = 9,309.06/x
3. Step 3: Cross multiply
   12,458.34x = 17,193.72 × 9,309.06
4. Step 4: Simplify right side
   12,458.34x = 160,057,371.10
5. Step 5: Solve for x
   x = 160,057,371.10/12,458.34
6. Step 6: Final answer
   x = 12,847.41