Finding the Fourth Proportional to 10,630.72, 15,947.76 and 3,512.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,630.72 : 15,947.76 = 3,512.80 : x
2. Step 2: Convert to fraction form
   10,630.72/15,947.76 = 3,512.80/x
3. Step 3: Cross multiply
   10,630.72x = 15,947.76 × 3,512.80
4. Step 4: Simplify right side
   10,630.72x = 56,021,291.33
5. Step 5: Solve for x
   x = 56,021,291.33/10,630.72
6. Step 6: Final answer
   x = 5,269.76