Finding the Fourth Proportional to 8,856.43, 13,287.71 and 3,929.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,856.43 : 13,287.71 = 3,929.52 : x
2. Step 2: Convert to fraction form
   8,856.43/13,287.71 = 3,929.52/x
3. Step 3: Cross multiply
   8,856.43x = 13,287.71 × 3,929.52
4. Step 4: Simplify right side
   8,856.43x = 52,214,322.20
5. Step 5: Solve for x
   x = 52,214,322.20/8,856.43
6. Step 6: Final answer
   x = 5,895.64