Finding the Fourth Proportional to 10,661.82, 15,994.42 and 3,546.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,661.82 : 15,994.42 = 3,546.31 : x
2. Step 2: Convert to fraction form
   10,661.82/15,994.42 = 3,546.31/x
3. Step 3: Cross multiply
   10,661.82x = 15,994.42 × 3,546.31
4. Step 4: Simplify right side
   10,661.82x = 56,721,171.59
5. Step 5: Solve for x
   x = 56,721,171.59/10,661.82
6. Step 6: Final answer
   x = 5,320.03