Finding the Fourth Proportional to 111.49, 167.15 and 43.00

Step by Step Solution

1. Step 1: Write the proportion equation
   111.49 : 167.15 = 43.00 : x
2. Step 2: Convert to fraction form
   111.49/167.15 = 43.00/x
3. Step 3: Cross multiply
   111.49x = 167.15 × 43.00
4. Step 4: Simplify right side
   111.49x = 7,186.77
5. Step 5: Solve for x
   x = 7,186.77/111.49
6. Step 6: Final answer
   x = 64.46