Finding the Fourth Proportional to 12,123.28, 16,708.38 and 8,974

Step by Step Solution

1. Step 1: Write the proportion equation
   12,123.28 : 16,708.38 = 8,974 : x
2. Step 2: Convert to fraction form
   12,123.28/16,708.38 = 8,974/x
3. Step 3: Cross multiply
   12,123.28x = 16,708.38 × 8,974
4. Step 4: Simplify right side
   12,123.28x = 149,941,002.12
5. Step 5: Solve for x
   x = 149,941,002.12/12,123.28
6. Step 6: Final answer
   x = 12,368.02