Finding the Fourth Proportional to 28.50, 42.69 and 27.93

Step by Step Solution

1. Step 1: Write the proportion equation
   28.50 : 42.69 = 27.93 : x
2. Step 2: Convert to fraction form
   28.50/42.69 = 27.93/x
3. Step 3: Cross multiply
   28.50x = 42.69 × 27.93
4. Step 4: Simplify right side
   28.50x = 1,192.33
5. Step 5: Solve for x
   x = 1,192.33/28.50
6. Step 6: Final answer
   x = 41.84