Finding the Fourth Proportional to 70,665.57, 105,997.82 and 18,074.97

Step by Step Solution

1. Step 1: Write the proportion equation
   70,665.57 : 105,997.82 = 18,074.97 : x
2. Step 2: Convert to fraction form
   70,665.57/105,997.82 = 18,074.97/x
3. Step 3: Cross multiply
   70,665.57x = 105,997.82 × 18,074.97
4. Step 4: Simplify right side
   70,665.57x = 1,915,907,326.19
5. Step 5: Solve for x
   x = 1,915,907,326.19/70,665.57
6. Step 6: Final answer
   x = 27,112.32