Finding the Fourth Proportional to 10,578.01, 15,855.85 and 3,551.37

Step by Step Solution

1. Step 1: Write the proportion equation
   10,578.01 : 15,855.85 = 3,551.37 : x
2. Step 2: Convert to fraction form
   10,578.01/15,855.85 = 3,551.37/x
3. Step 3: Cross multiply
   10,578.01x = 15,855.85 × 3,551.37
4. Step 4: Simplify right side
   10,578.01x = 56,309,990.01
5. Step 5: Solve for x
   x = 56,309,990.01/10,578.01
6. Step 6: Final answer
   x = 5,323.31