Finding the Fourth Proportional to 73.83, 110.69 and 28.16

Step by Step Solution

1. Step 1: Write the proportion equation
   73.83 : 110.69 = 28.16 : x
2. Step 2: Convert to fraction form
   73.83/110.69 = 28.16/x
3. Step 3: Cross multiply
   73.83x = 110.69 × 28.16
4. Step 4: Simplify right side
   73.83x = 3,116.34
5. Step 5: Solve for x
   x = 3,116.34/73.83
6. Step 6: Final answer
   x = 42.21