Finding the Fourth Proportional to 12,409.48, 17,126.46 and 7,105

Step by Step Solution

1. Step 1: Write the proportion equation
   12,409.48 : 17,126.46 = 7,105 : x
2. Step 2: Convert to fraction form
   12,409.48/17,126.46 = 7,105/x
3. Step 3: Cross multiply
   12,409.48x = 17,126.46 × 7,105
4. Step 4: Simplify right side
   12,409.48x = 121,683,498.30
5. Step 5: Solve for x
   x = 121,683,498.30/12,409.48
6. Step 6: Final answer
   x = 9,805.69