Finding the Fourth Proportional to 5,564.51, 7,669.86 and 3,949.98

Step by Step Solution

1. Step 1: Write the proportion equation
   5,564.51 : 7,669.86 = 3,949.98 : x
2. Step 2: Convert to fraction form
   5,564.51/7,669.86 = 3,949.98/x
3. Step 3: Cross multiply
   5,564.51x = 7,669.86 × 3,949.98
4. Step 4: Simplify right side
   5,564.51x = 30,295,793.60
5. Step 5: Solve for x
   x = 30,295,793.60/5,564.51
6. Step 6: Final answer
   x = 5,444.47