Finding the Fourth Proportional to 10,502.24, 15,756.20 and 3,929.09

Step by Step Solution

1. Step 1: Write the proportion equation
   10,502.24 : 15,756.20 = 3,929.09 : x
2. Step 2: Convert to fraction form
   10,502.24/15,756.20 = 3,929.09/x
3. Step 3: Cross multiply
   10,502.24x = 15,756.20 × 3,929.09
4. Step 4: Simplify right side
   10,502.24x = 61,907,429.43
5. Step 5: Solve for x
   x = 61,907,429.43/10,502.24
6. Step 6: Final answer
   x = 5,894.69