Finding the Fourth Proportional to 16,449.28, 22,698.72 and 9,374.32

Step by Step Solution

1. Step 1: Write the proportion equation
   16,449.28 : 22,698.72 = 9,374.32 : x
2. Step 2: Convert to fraction form
   16,449.28/22,698.72 = 9,374.32/x
3. Step 3: Cross multiply
   16,449.28x = 22,698.72 × 9,374.32
4. Step 4: Simplify right side
   16,449.28x = 212,785,064.87
5. Step 5: Solve for x
   x = 212,785,064.87/16,449.28
6. Step 6: Final answer
   x = 12,935.83