Finding the Fourth Proportional to 10,411.10, 15,615.63 and 5,729.57

Step by Step Solution

1. Step 1: Write the proportion equation
   10,411.10 : 15,615.63 = 5,729.57 : x
2. Step 2: Convert to fraction form
   10,411.10/15,615.63 = 5,729.57/x
3. Step 3: Cross multiply
   10,411.10x = 15,615.63 × 5,729.57
4. Step 4: Simplify right side
   10,411.10x = 89,470,767.10
5. Step 5: Solve for x
   x = 89,470,767.10/10,411.10
6. Step 6: Final answer
   x = 8,593.79