Finding the Fourth Proportional to 8,662.56, 12,993.78 and 2,088.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,662.56 : 12,993.78 = 2,088.72 : x
2. Step 2: Convert to fraction form
   8,662.56/12,993.78 = 2,088.72/x
3. Step 3: Cross multiply
   8,662.56x = 12,993.78 × 2,088.72
4. Step 4: Simplify right side
   8,662.56x = 27,140,368.16
5. Step 5: Solve for x
   x = 27,140,368.16/8,662.56
6. Step 6: Final answer
   x = 3,133.07