Finding the Fourth Proportional to 16,224.32, 22,389.56 and 9,150.75

Step by Step Solution

1. Step 1: Write the proportion equation
   16,224.32 : 22,389.56 = 9,150.75 : x
2. Step 2: Convert to fraction form
   16,224.32/22,389.56 = 9,150.75/x
3. Step 3: Cross multiply
   16,224.32x = 22,389.56 × 9,150.75
4. Step 4: Simplify right side
   16,224.32x = 204,881,266.17
5. Step 5: Solve for x
   x = 204,881,266.17/16,224.32
6. Step 6: Final answer
   x = 12,628.03