Finding the Fourth Proportional to 9,141.63, 12,615.42 and 5,162.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,141.63 : 12,615.42 = 5,162.73 : x
2. Step 2: Convert to fraction form
   9,141.63/12,615.42 = 5,162.73/x
3. Step 3: Cross multiply
   9,141.63x = 12,615.42 × 5,162.73
4. Step 4: Simplify right side
   9,141.63x = 65,130,007.30
5. Step 5: Solve for x
   x = 65,130,007.30/9,141.63
6. Step 6: Final answer
   x = 7,124.55