Finding the Fourth Proportional to 112.50, 168.78 and 35.46

Step by Step Solution

1. Step 1: Write the proportion equation
   112.50 : 168.78 = 35.46 : x
2. Step 2: Convert to fraction form
   112.50/168.78 = 35.46/x
3. Step 3: Cross multiply
   112.50x = 168.78 × 35.46
4. Step 4: Simplify right side
   112.50x = 5,984.94
5. Step 5: Solve for x
   x = 5,984.94/112.50
6. Step 6: Final answer
   x = 53.20