Finding the Fourth Proportional to 12,723.89, 17,562.56 and 8,947.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,723.89 : 17,562.56 = 8,947.94 : x
2. Step 2: Convert to fraction form
   12,723.89/17,562.56 = 8,947.94/x
3. Step 3: Cross multiply
   12,723.89x = 17,562.56 × 8,947.94
4. Step 4: Simplify right side
   12,723.89x = 157,148,600.57
5. Step 5: Solve for x
   x = 157,148,600.57/12,723.89
6. Step 6: Final answer
   x = 12,350.68