Finding the Fourth Proportional to 8,510.40, 12,766.01 and 2,667.06

Step by Step Solution

1. Step 1: Write the proportion equation
   8,510.40 : 12,766.01 = 2,667.06 : x
2. Step 2: Convert to fraction form
   8,510.40/12,766.01 = 2,667.06/x
3. Step 3: Cross multiply
   8,510.40x = 12,766.01 × 2,667.06
4. Step 4: Simplify right side
   8,510.40x = 34,047,746.55
5. Step 5: Solve for x
   x = 34,047,746.55/8,510.40
6. Step 6: Final answer
   x = 4,000.72