Finding the Fourth Proportional to 47,917.56, 71,866.62 and 12,849

Step by Step Solution

1. Step 1: Write the proportion equation
   47,917.56 : 71,866.62 = 12,849 : x
2. Step 2: Convert to fraction form
   47,917.56/71,866.62 = 12,849/x
3. Step 3: Cross multiply
   47,917.56x = 71,866.62 × 12,849
4. Step 4: Simplify right side
   47,917.56x = 923,414,200.38
5. Step 5: Solve for x
   x = 923,414,200.38/47,917.56
6. Step 6: Final answer
   x = 19,270.89