Finding the Fourth Proportional to 9,141.18, 12,614.61 and 5,162.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,141.18 : 12,614.61 = 5,162.16 : x
2. Step 2: Convert to fraction form
   9,141.18/12,614.61 = 5,162.16/x
3. Step 3: Cross multiply
   9,141.18x = 12,614.61 × 5,162.16
4. Step 4: Simplify right side
   9,141.18x = 65,118,635.16
5. Step 5: Solve for x
   x = 65,118,635.16/9,141.18
6. Step 6: Final answer
   x = 7,123.66