Finding the Fourth Proportional to 107.34, 160.83 and 83.22

Step by Step Solution

1. Step 1: Write the proportion equation
   107.34 : 160.83 = 83.22 : x
2. Step 2: Convert to fraction form
   107.34/160.83 = 83.22/x
3. Step 3: Cross multiply
   107.34x = 160.83 × 83.22
4. Step 4: Simplify right side
   107.34x = 13,384.27
5. Step 5: Solve for x
   x = 13,384.27/107.34
6. Step 6: Final answer
   x = 124.69