Finding the Fourth Proportional to 10,410.72, 15,615.06 and 5,729.19

Step by Step Solution

1. Step 1: Write the proportion equation
   10,410.72 : 15,615.06 = 5,729.19 : x
2. Step 2: Convert to fraction form
   10,410.72/15,615.06 = 5,729.19/x
3. Step 3: Cross multiply
   10,410.72x = 15,615.06 × 5,729.19
4. Step 4: Simplify right side
   10,410.72x = 89,461,645.60
5. Step 5: Solve for x
   x = 89,461,645.60/10,410.72
6. Step 6: Final answer
   x = 8,593.22