Finding the Fourth Proportional to 127.58, 176.06 and 72.33

Step by Step Solution

1. Step 1: Write the proportion equation
   127.58 : 176.06 = 72.33 : x
2. Step 2: Convert to fraction form
   127.58/176.06 = 72.33/x
3. Step 3: Cross multiply
   127.58x = 176.06 × 72.33
4. Step 4: Simplify right side
   127.58x = 12,734.42
5. Step 5: Solve for x
   x = 12,734.42/127.58
6. Step 6: Final answer
   x = 99.82