Finding the Fourth Proportional to 111,766.50, 167,659.47 and 28,660.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,766.50 : 167,659.47 = 28,660.50 : x
2. Step 2: Convert to fraction form
   111,766.50/167,659.47 = 28,660.50/x
3. Step 3: Cross multiply
   111,766.50x = 167,659.47 × 28,660.50
4. Step 4: Simplify right side
   111,766.50x = 4,805,204,239.94
5. Step 5: Solve for x
   x = 4,805,204,239.94/111,766.50
6. Step 6: Final answer
   x = 42,993.24