Finding the Fourth Proportional to 5,661.42, 7,816.59 and 3,540.18

Step by Step Solution

1. Step 1: Write the proportion equation
   5,661.42 : 7,816.59 = 3,540.18 : x
2. Step 2: Convert to fraction form
   5,661.42/7,816.59 = 3,540.18/x
3. Step 3: Cross multiply
   5,661.42x = 7,816.59 × 3,540.18
4. Step 4: Simplify right side
   5,661.42x = 27,672,135.59
5. Step 5: Solve for x
   x = 27,672,135.59/5,661.42
6. Step 6: Final answer
   x = 4,887.84