Finding the Fourth Proportional to 112.83, 155.69 and 69.16

Step by Step Solution

1. Step 1: Write the proportion equation
   112.83 : 155.69 = 69.16 : x
2. Step 2: Convert to fraction form
   112.83/155.69 = 69.16/x
3. Step 3: Cross multiply
   112.83x = 155.69 × 69.16
4. Step 4: Simplify right side
   112.83x = 10,767.52
5. Step 5: Solve for x
   x = 10,767.52/112.83
6. Step 6: Final answer
   x = 95.43