Finding the Fourth Proportional to 111,578.42, 167,367.54 and 28,472.42

Step by Step Solution

1. Step 1: Write the proportion equation
   111,578.42 : 167,367.54 = 28,472.42 : x
2. Step 2: Convert to fraction form
   111,578.42/167,367.54 = 28,472.42/x
3. Step 3: Cross multiply
   111,578.42x = 167,367.54 × 28,472.42
4. Step 4: Simplify right side
   111,578.42x = 4,765,358,893.25
5. Step 5: Solve for x
   x = 4,765,358,893.25/111,578.42
6. Step 6: Final answer
   x = 42,708.61