Finding the Fourth Proportional to 111,580.69, 167,370.90 and 28,474.69

Step by Step Solution

1. Step 1: Write the proportion equation
   111,580.69 : 167,370.90 = 28,474.69 : x
2. Step 2: Convert to fraction form
   111,580.69/167,370.90 = 28,474.69/x
3. Step 3: Cross multiply
   111,580.69x = 167,370.90 × 28,474.69
4. Step 4: Simplify right side
   111,580.69x = 4,765,834,350.15
5. Step 5: Solve for x
   x = 4,765,834,350.15/111,580.69
6. Step 6: Final answer
   x = 42,712.00