Finding the Fourth Proportional to 5,554.71, 7,665.50 and 3,164.61

Step by Step Solution

1. Step 1: Write the proportion equation
   5,554.71 : 7,665.50 = 3,164.61 : x
2. Step 2: Convert to fraction form
   5,554.71/7,665.50 = 3,164.61/x
3. Step 3: Cross multiply
   5,554.71x = 7,665.50 × 3,164.61
4. Step 4: Simplify right side
   5,554.71x = 24,258,354.61
5. Step 5: Solve for x
   x = 24,258,354.61/5,554.71
6. Step 6: Final answer
   x = 4,367.17