Finding the Fourth Proportional to 260,665.06, 391,020.38 and 73,676.56

Step by Step Solution

1. Step 1: Write the proportion equation
   260,665.06 : 391,020.38 = 73,676.56 : x
2. Step 2: Convert to fraction form
   260,665.06/391,020.38 = 73,676.56/x
3. Step 3: Cross multiply
   260,665.06x = 391,020.38 × 73,676.56
4. Step 4: Simplify right side
   260,665.06x = 28,809,036,488.29
5. Step 5: Solve for x
   x = 28,809,036,488.29/260,665.06
6. Step 6: Final answer
   x = 110,521.28