Finding the Fourth Proportional to 16,346.28, 22,557.72 and 9,272.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,346.28 : 22,557.72 = 9,272.76 : x
2. Step 2: Convert to fraction form
   16,346.28/22,557.72 = 9,272.76/x
3. Step 3: Cross multiply
   16,346.28x = 22,557.72 × 9,272.76
4. Step 4: Simplify right side
   16,346.28x = 209,172,323.71
5. Step 5: Solve for x
   x = 209,172,323.71/16,346.28
6. Step 6: Final answer
   x = 12,796.33