Finding the Fourth Proportional to 116.32, 174.43 and 43.18

Step by Step Solution

1. Step 1: Write the proportion equation
   116.32 : 174.43 = 43.18 : x
2. Step 2: Convert to fraction form
   116.32/174.43 = 43.18/x
3. Step 3: Cross multiply
   116.32x = 174.43 × 43.18
4. Step 4: Simplify right side
   116.32x = 7,531.89
5. Step 5: Solve for x
   x = 7,531.89/116.32
6. Step 6: Final answer
   x = 64.75