Finding the Fourth Proportional to 5,561.24, 7,680.81 and 3,789.77

Step by Step Solution

1. Step 1: Write the proportion equation
   5,561.24 : 7,680.81 = 3,789.77 : x
2. Step 2: Convert to fraction form
   5,561.24/7,680.81 = 3,789.77/x
3. Step 3: Cross multiply
   5,561.24x = 7,680.81 × 3,789.77
4. Step 4: Simplify right side
   5,561.24x = 29,108,503.31
5. Step 5: Solve for x
   x = 29,108,503.31/5,561.24
6. Step 6: Final answer
   x = 5,234.17