Finding the Fourth Proportional to 16,667.25, 22,999.86 and 9,112.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,667.25 : 22,999.86 = 9,112.18 : x
2. Step 2: Convert to fraction form
   16,667.25/22,999.86 = 9,112.18/x
3. Step 3: Cross multiply
   16,667.25x = 22,999.86 × 9,112.18
4. Step 4: Simplify right side
   16,667.25x = 209,578,806.80
5. Step 5: Solve for x
   x = 209,578,806.80/16,667.25
6. Step 6: Final answer
   x = 12,574.29