Finding the Fourth Proportional to 10,661.42, 15,993.96 and 3,641.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,661.42 : 15,993.96 = 3,641.05 : x
2. Step 2: Convert to fraction form
   10,661.42/15,993.96 = 3,641.05/x
3. Step 3: Cross multiply
   10,661.42x = 15,993.96 × 3,641.05
4. Step 4: Simplify right side
   10,661.42x = 58,234,814.40
5. Step 5: Solve for x
   x = 58,234,814.40/10,661.42
6. Step 6: Final answer
   x = 5,462.20