Finding the Fourth Proportional to 9,141.21, 12,614.14 and 5,162.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,141.21 : 12,614.14 = 5,162.71 : x
2. Step 2: Convert to fraction form
   9,141.21/12,614.14 = 5,162.71/x
3. Step 3: Cross multiply
   9,141.21x = 12,614.14 × 5,162.71
4. Step 4: Simplify right side
   9,141.21x = 65,123,146.72
5. Step 5: Solve for x
   x = 65,123,146.72/9,141.21
6. Step 6: Final answer
   x = 7,124.13