Finding the Fourth Proportional to 3,845.55, 5,272.25 and 3,775.49

Step by Step Solution

1. Step 1: Write the proportion equation
   3,845.55 : 5,272.25 = 3,775.49 : x
2. Step 2: Convert to fraction form
   3,845.55/5,272.25 = 3,775.49/x
3. Step 3: Cross multiply
   3,845.55x = 5,272.25 × 3,775.49
4. Step 4: Simplify right side
   3,845.55x = 19,905,281.91
5. Step 5: Solve for x
   x = 19,905,281.91/3,845.55
6. Step 6: Final answer
   x = 5,176.19