Finding the Fourth Proportional to 103.84, 155.82 and 72.52

Step by Step Solution

1. Step 1: Write the proportion equation
   103.84 : 155.82 = 72.52 : x
2. Step 2: Convert to fraction form
   103.84/155.82 = 72.52/x
3. Step 3: Cross multiply
   103.84x = 155.82 × 72.52
4. Step 4: Simplify right side
   103.84x = 11,300.07
5. Step 5: Solve for x
   x = 11,300.07/103.84
6. Step 6: Final answer
   x = 108.82