Finding the Fourth Proportional to 5,439.01, 8,144.55 and 3,770.76

Step by Step Solution

1. Step 1: Write the proportion equation
   5,439.01 : 8,144.55 = 3,770.76 : x
2. Step 2: Convert to fraction form
   5,439.01/8,144.55 = 3,770.76/x
3. Step 3: Cross multiply
   5,439.01x = 8,144.55 × 3,770.76
4. Step 4: Simplify right side
   5,439.01x = 30,711,143.36
5. Step 5: Solve for x
   x = 30,711,143.36/5,439.01
6. Step 6: Final answer
   x = 5,646.46