Finding the Fourth Proportional to 42.88, 64.24 and 32.08

Step by Step Solution

1. Step 1: Write the proportion equation
   42.88 : 64.24 = 32.08 : x
2. Step 2: Convert to fraction form
   42.88/64.24 = 32.08/x
3. Step 3: Cross multiply
   42.88x = 64.24 × 32.08
4. Step 4: Simplify right side
   42.88x = 2,060.82
5. Step 5: Solve for x
   x = 2,060.82/42.88
6. Step 6: Final answer
   x = 48.06