Finding the Fourth Proportional to 12,667.70, 17,485.80 and 8,701.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,667.70 : 17,485.80 = 8,701.94 : x
2. Step 2: Convert to fraction form
   12,667.70/17,485.80 = 8,701.94/x
3. Step 3: Cross multiply
   12,667.70x = 17,485.80 × 8,701.94
4. Step 4: Simplify right side
   12,667.70x = 152,160,382.45
5. Step 5: Solve for x
   x = 152,160,382.45/12,667.70
6. Step 6: Final answer
   x = 12,011.68