Finding the Fourth Proportional to 10,970, 16,456.72 and 3,572.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,970 : 16,456.72 = 3,572.72 : x
2. Step 2: Convert to fraction form
   10,970/16,456.72 = 3,572.72/x
3. Step 3: Cross multiply
   10,970x = 16,456.72 × 3,572.72
4. Step 4: Simplify right side
   10,970x = 58,795,252.68
5. Step 5: Solve for x
   x = 58,795,252.68/10,970
6. Step 6: Final answer
   x = 5,359.64