Finding the Fourth Proportional to 20,605.46, 30,894.52 and 7,456.12

Step by Step Solution

1. Step 1: Write the proportion equation
   20,605.46 : 30,894.52 = 7,456.12 : x
2. Step 2: Convert to fraction form
   20,605.46/30,894.52 = 7,456.12/x
3. Step 3: Cross multiply
   20,605.46x = 30,894.52 × 7,456.12
4. Step 4: Simplify right side
   20,605.46x = 230,353,248.46
5. Step 5: Solve for x
   x = 230,353,248.46/20,605.46
6. Step 6: Final answer
   x = 11,179.23