Finding the Fourth Proportional to 3,771.86, 5,615.55 and 3,753.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,771.86 : 5,615.55 = 3,753.62 : x
2. Step 2: Convert to fraction form
   3,771.86/5,615.55 = 3,753.62/x
3. Step 3: Cross multiply
   3,771.86x = 5,615.55 × 3,753.62
4. Step 4: Simplify right side
   3,771.86x = 21,078,640.79
5. Step 5: Solve for x
   x = 21,078,640.79/3,771.86
6. Step 6: Final answer
   x = 5,588.39