Finding the Fourth Proportional to 112.31, 168.35 and 43.83

Step by Step Solution

1. Step 1: Write the proportion equation
   112.31 : 168.35 = 43.83 : x
2. Step 2: Convert to fraction form
   112.31/168.35 = 43.83/x
3. Step 3: Cross multiply
   112.31x = 168.35 × 43.83
4. Step 4: Simplify right side
   112.31x = 7,378.89
5. Step 5: Solve for x
   x = 7,378.89/112.31
6. Step 6: Final answer
   x = 65.70