Finding the Fourth Proportional to 5,871.38, 8,054.25 and 5,553.61

Step by Step Solution

1. Step 1: Write the proportion equation
   5,871.38 : 8,054.25 = 5,553.61 : x
2. Step 2: Convert to fraction form
   5,871.38/8,054.25 = 5,553.61/x
3. Step 3: Cross multiply
   5,871.38x = 8,054.25 × 5,553.61
4. Step 4: Simplify right side
   5,871.38x = 44,730,143.21
5. Step 5: Solve for x
   x = 44,730,143.21/5,871.38
6. Step 6: Final answer
   x = 7,618.34