Finding the Fourth Proportional to 10,579.64, 15,870.82 and 3,556.62

Step by Step Solution

1. Step 1: Write the proportion equation
   10,579.64 : 15,870.82 = 3,556.62 : x
2. Step 2: Convert to fraction form
   10,579.64/15,870.82 = 3,556.62/x
3. Step 3: Cross multiply
   10,579.64x = 15,870.82 × 3,556.62
4. Step 4: Simplify right side
   10,579.64x = 56,446,466.94
5. Step 5: Solve for x
   x = 56,446,466.94/10,579.64
6. Step 6: Final answer
   x = 5,335.39