Finding the Fourth Proportional to 162.35, 243.52 and 71.00

Step by Step Solution

1. Step 1: Write the proportion equation
   162.35 : 243.52 = 71.00 : x
2. Step 2: Convert to fraction form
   162.35/243.52 = 71.00/x
3. Step 3: Cross multiply
   162.35x = 243.52 × 71.00
4. Step 4: Simplify right side
   162.35x = 17,288.52
5. Step 5: Solve for x
   x = 17,288.52/162.35
6. Step 6: Final answer
   x = 106.49