Finding the Fourth Proportional to 12,410.70, 17,127.53 and 7,105.39

Step by Step Solution

1. Step 1: Write the proportion equation
   12,410.70 : 17,127.53 = 7,105.39 : x
2. Step 2: Convert to fraction form
   12,410.70/17,127.53 = 7,105.39/x
3. Step 3: Cross multiply
   12,410.70x = 17,127.53 × 7,105.39
4. Step 4: Simplify right side
   12,410.70x = 121,697,780.39
5. Step 5: Solve for x
   x = 121,697,780.39/12,410.70
6. Step 6: Final answer
   x = 9,805.88