Finding the Fourth Proportional to 72.27, 106.93 and 72.07

Step by Step Solution

1. Step 1: Write the proportion equation
   72.27 : 106.93 = 72.07 : x
2. Step 2: Convert to fraction form
   72.27/106.93 = 72.07/x
3. Step 3: Cross multiply
   72.27x = 106.93 × 72.07
4. Step 4: Simplify right side
   72.27x = 7,706.27
5. Step 5: Solve for x
   x = 7,706.27/72.27
6. Step 6: Final answer
   x = 106.63