Finding the Fourth Proportional to 12,560.12, 17,293.56 and 10,667.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,560.12 : 17,293.56 = 10,667.72 : x
2. Step 2: Convert to fraction form
   12,560.12/17,293.56 = 10,667.72/x
3. Step 3: Cross multiply
   12,560.12x = 17,293.56 × 10,667.72
4. Step 4: Simplify right side
   12,560.12x = 184,482,855.88
5. Step 5: Solve for x
   x = 184,482,855.88/12,560.12
6. Step 6: Final answer
   x = 14,687.99