Finding the Fourth Proportional to 9,141.46, 12,613.62 and 5,162.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,141.46 : 12,613.62 = 5,162.47 : x
2. Step 2: Convert to fraction form
   9,141.46/12,613.62 = 5,162.47/x
3. Step 3: Cross multiply
   9,141.46x = 12,613.62 × 5,162.47
4. Step 4: Simplify right side
   9,141.46x = 65,117,422.67
5. Step 5: Solve for x
   x = 65,117,422.67/9,141.46
6. Step 6: Final answer
   x = 7,123.31