Finding the Fourth Proportional to 47,912.71, 71,863.56 and 12,849.61

Step by Step Solution

1. Step 1: Write the proportion equation
   47,912.71 : 71,863.56 = 12,849.61 : x
2. Step 2: Convert to fraction form
   47,912.71/71,863.56 = 12,849.61/x
3. Step 3: Cross multiply
   47,912.71x = 71,863.56 × 12,849.61
4. Step 4: Simplify right side
   47,912.71x = 923,418,719.21
5. Step 5: Solve for x
   x = 923,418,719.21/47,912.71
6. Step 6: Final answer
   x = 19,272.94