Finding the Fourth Proportional to 127.33, 175.69 and 72.08

Step by Step Solution

1. Step 1: Write the proportion equation
   127.33 : 175.69 = 72.08 : x
2. Step 2: Convert to fraction form
   127.33/175.69 = 72.08/x
3. Step 3: Cross multiply
   127.33x = 175.69 × 72.08
4. Step 4: Simplify right side
   127.33x = 12,663.20
5. Step 5: Solve for x
   x = 12,663.20/127.33
6. Step 6: Final answer
   x = 99.45