Finding the Fourth Proportional to 5,513.61, 8,281.72 and 3,642.26

Step by Step Solution

1. Step 1: Write the proportion equation
   5,513.61 : 8,281.72 = 3,642.26 : x
2. Step 2: Convert to fraction form
   5,513.61/8,281.72 = 3,642.26/x
3. Step 3: Cross multiply
   5,513.61x = 8,281.72 × 3,642.26
4. Step 4: Simplify right side
   5,513.61x = 30,164,177.49
5. Step 5: Solve for x
   x = 30,164,177.49/5,513.61
6. Step 6: Final answer
   x = 5,470.86