Finding the Fourth Proportional to 113,520.82, 170,018.79 and 109,584.22

Step by Step Solution

1. Step 1: Write the proportion equation
   113,520.82 : 170,018.79 = 109,584.22 : x
2. Step 2: Convert to fraction form
   113,520.82/170,018.79 = 109,584.22/x
3. Step 3: Cross multiply
   113,520.82x = 170,018.79 × 109,584.22
4. Step 4: Simplify right side
   113,520.82x = 18,631,376,487.49
5. Step 5: Solve for x
   x = 18,631,376,487.49/113,520.82
6. Step 6: Final answer
   x = 164,122.99