Finding the Fourth Proportional to 17,977.73, 26,945.42 and 8,105.45

Step by Step Solution

1. Step 1: Write the proportion equation
   17,977.73 : 26,945.42 = 8,105.45 : x
2. Step 2: Convert to fraction form
   17,977.73/26,945.42 = 8,105.45/x
3. Step 3: Cross multiply
   17,977.73x = 26,945.42 × 8,105.45
4. Step 4: Simplify right side
   17,977.73x = 218,404,714.01
5. Step 5: Solve for x
   x = 218,404,714.01/17,977.73
6. Step 6: Final answer
   x = 12,148.63