Finding the Fourth Proportional to 12,667.09, 17,386.94 and 12,125.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,667.09 : 17,386.94 = 12,125.81 : x
2. Step 2: Convert to fraction form
   12,667.09/17,386.94 = 12,125.81/x
3. Step 3: Cross multiply
   12,667.09x = 17,386.94 × 12,125.81
4. Step 4: Simplify right side
   12,667.09x = 210,830,730.92
5. Step 5: Solve for x
   x = 210,830,730.92/12,667.09
6. Step 6: Final answer
   x = 16,643.98