Finding the Fourth Proportional to 5,644.08, 7,790.31 and 3,654.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,644.08 : 7,790.31 = 3,654.72 : x
2. Step 2: Convert to fraction form
   5,644.08/7,790.31 = 3,654.72/x
3. Step 3: Cross multiply
   5,644.08x = 7,790.31 × 3,654.72
4. Step 4: Simplify right side
   5,644.08x = 28,471,401.76
5. Step 5: Solve for x
   x = 28,471,401.76/5,644.08
6. Step 6: Final answer
   x = 5,044.47