Finding the Fourth Proportional to 3,753.75, 5,142.56 and 3,613.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,753.75 : 5,142.56 = 3,613.53 : x
2. Step 2: Convert to fraction form
   3,753.75/5,142.56 = 3,613.53/x
3. Step 3: Cross multiply
   3,753.75x = 5,142.56 × 3,613.53
4. Step 4: Simplify right side
   3,753.75x = 18,582,776.77
5. Step 5: Solve for x
   x = 18,582,776.77/3,753.75
6. Step 6: Final answer
   x = 4,950.46