Finding the Fourth Proportional to 113,578.58, 170,238.72 and 69,107.33

Step by Step Solution

1. Step 1: Write the proportion equation
   113,578.58 : 170,238.72 = 69,107.33 : x
2. Step 2: Convert to fraction form
   113,578.58/170,238.72 = 69,107.33/x
3. Step 3: Cross multiply
   113,578.58x = 170,238.72 × 69,107.33
4. Step 4: Simplify right side
   113,578.58x = 11,764,743,401.82
5. Step 5: Solve for x
   x = 11,764,743,401.82/113,578.58
6. Step 6: Final answer
   x = 103,582.41