Finding the Fourth Proportional to 5,427.61, 8,141.31 and 2,140.73

Step by Step Solution

1. Step 1: Write the proportion equation
   5,427.61 : 8,141.31 = 2,140.73 : x
2. Step 2: Convert to fraction form
   5,427.61/8,141.31 = 2,140.73/x
3. Step 3: Cross multiply
   5,427.61x = 8,141.31 × 2,140.73
4. Step 4: Simplify right side
   5,427.61x = 17,428,336.38
5. Step 5: Solve for x
   x = 17,428,336.38/5,427.61
6. Step 6: Final answer
   x = 3,211.05