Finding the Fourth Proportional to 5,554.35, 7,665.01 and 4,139.27

Step by Step Solution

1. Step 1: Write the proportion equation
   5,554.35 : 7,665.01 = 4,139.27 : x
2. Step 2: Convert to fraction form
   5,554.35/7,665.01 = 4,139.27/x
3. Step 3: Cross multiply
   5,554.35x = 7,665.01 × 4,139.27
4. Step 4: Simplify right side
   5,554.35x = 31,727,519.38
5. Step 5: Solve for x
   x = 31,727,519.38/5,554.35
6. Step 6: Final answer
   x = 5,712.19