Finding the Fourth Proportional to 17,947.34, 24,766.50 and 11,978.18

Step by Step Solution

1. Step 1: Write the proportion equation
   17,947.34 : 24,766.50 = 11,978.18 : x
2. Step 2: Convert to fraction form
   17,947.34/24,766.50 = 11,978.18/x
3. Step 3: Cross multiply
   17,947.34x = 24,766.50 × 11,978.18
4. Step 4: Simplify right side
   17,947.34x = 296,657,594.97
5. Step 5: Solve for x
   x = 296,657,594.97/17,947.34
6. Step 6: Final answer
   x = 16,529.33