Finding the Fourth Proportional to 5,273.55, 7,280.42 and 3,946.77

Step by Step Solution

1. Step 1: Write the proportion equation
   5,273.55 : 7,280.42 = 3,946.77 : x
2. Step 2: Convert to fraction form
   5,273.55/7,280.42 = 3,946.77/x
3. Step 3: Cross multiply
   5,273.55x = 7,280.42 × 3,946.77
4. Step 4: Simplify right side
   5,273.55x = 28,734,123.51
5. Step 5: Solve for x
   x = 28,734,123.51/5,273.55
6. Step 6: Final answer
   x = 5,448.72