Finding the Fourth Proportional to 10,573.28, 14,591.60 and 5,857.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,573.28 : 14,591.60 = 5,857.55 : x
2. Step 2: Convert to fraction form
   10,573.28/14,591.60 = 5,857.55/x
3. Step 3: Cross multiply
   10,573.28x = 14,591.60 × 5,857.55
4. Step 4: Simplify right side
   10,573.28x = 85,470,924.33
5. Step 5: Solve for x
   x = 85,470,924.33/10,573.28
6. Step 6: Final answer
   x = 8,083.68