Finding the Fourth Proportional to 10,142.31, 15,212.96 and 3,568.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,142.31 : 15,212.96 = 3,568.55 : x
2. Step 2: Convert to fraction form
   10,142.31/15,212.96 = 3,568.55/x
3. Step 3: Cross multiply
   10,142.31x = 15,212.96 × 3,568.55
4. Step 4: Simplify right side
   10,142.31x = 54,288,190.57
5. Step 5: Solve for x
   x = 54,288,190.57/10,142.31
6. Step 6: Final answer
   x = 5,352.65