Finding the Fourth Proportional to 16,128.17, 22,257.01 and 9,054.73

Step by Step Solution

1. Step 1: Write the proportion equation
   16,128.17 : 22,257.01 = 9,054.73 : x
2. Step 2: Convert to fraction form
   16,128.17/22,257.01 = 9,054.73/x
3. Step 3: Cross multiply
   16,128.17x = 22,257.01 × 9,054.73
4. Step 4: Simplify right side
   16,128.17x = 201,531,216.16
5. Step 5: Solve for x
   x = 201,531,216.16/16,128.17
6. Step 6: Final answer
   x = 12,495.60