Finding the Fourth Proportional to 12,667.12, 17,454.36 and 10,772.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,667.12 : 17,454.36 = 10,772.08 : x
2. Step 2: Convert to fraction form
   12,667.12/17,454.36 = 10,772.08/x
3. Step 3: Cross multiply
   12,667.12x = 17,454.36 × 10,772.08
4. Step 4: Simplify right side
   12,667.12x = 188,019,762.27
5. Step 5: Solve for x
   x = 188,019,762.27/12,667.12
6. Step 6: Final answer
   x = 14,843.13