Finding the Fourth Proportional to 5,577.89, 8,365.61 and 2,614.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,577.89 : 8,365.61 = 2,614.50 : x
2. Step 2: Convert to fraction form
   5,577.89/8,365.61 = 2,614.50/x
3. Step 3: Cross multiply
   5,577.89x = 8,365.61 × 2,614.50
4. Step 4: Simplify right side
   5,577.89x = 21,871,893.88
5. Step 5: Solve for x
   x = 21,871,893.88/5,577.89
6. Step 6: Final answer
   x = 3,921.18