Finding the Fourth Proportional to 12,156.73, 18,243.30 and 4,760.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,156.73 : 18,243.30 = 4,760.27 : x
2. Step 2: Convert to fraction form
   12,156.73/18,243.30 = 4,760.27/x
3. Step 3: Cross multiply
   12,156.73x = 18,243.30 × 4,760.27
4. Step 4: Simplify right side
   12,156.73x = 86,843,028.74
5. Step 5: Solve for x
   x = 86,843,028.74/12,156.73
6. Step 6: Final answer
   x = 7,143.62