Finding the Fourth Proportional to 10,513.24, 15,769.62 and 2,615.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,513.24 : 15,769.62 = 2,615.72 : x
2. Step 2: Convert to fraction form
   10,513.24/15,769.62 = 2,615.72/x
3. Step 3: Cross multiply
   10,513.24x = 15,769.62 × 2,615.72
4. Step 4: Simplify right side
   10,513.24x = 41,248,910.43
5. Step 5: Solve for x
   x = 41,248,910.43/10,513.24
6. Step 6: Final answer
   x = 3,923.52