Finding the Fourth Proportional to 43.23, 64.83 and 28.00

Step by Step Solution

1. Step 1: Write the proportion equation
   43.23 : 64.83 = 28.00 : x
2. Step 2: Convert to fraction form
   43.23/64.83 = 28.00/x
3. Step 3: Cross multiply
   43.23x = 64.83 × 28.00
4. Step 4: Simplify right side
   43.23x = 1,814.83
5. Step 5: Solve for x
   x = 1,814.83/43.23
6. Step 6: Final answer
   x = 41.98