Finding the Fourth Proportional to 10,561.98, 15,846.49 and 3,542.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,561.98 : 15,846.49 = 3,542.69 : x
2. Step 2: Convert to fraction form
   10,561.98/15,846.49 = 3,542.69/x
3. Step 3: Cross multiply
   10,561.98x = 15,846.49 × 3,542.69
4. Step 4: Simplify right side
   10,561.98x = 56,139,201.66
5. Step 5: Solve for x
   x = 56,139,201.66/10,561.98
6. Step 6: Final answer
   x = 5,315.22