Finding the Fourth Proportional to 8,502.81, 12,696.89 and 6,945.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,502.81 : 12,696.89 = 6,945.89 : x
2. Step 2: Convert to fraction form
   8,502.81/12,696.89 = 6,945.89/x
3. Step 3: Cross multiply
   8,502.81x = 12,696.89 × 6,945.89
4. Step 4: Simplify right side
   8,502.81x = 88,191,103.07
5. Step 5: Solve for x
   x = 88,191,103.07/8,502.81
6. Step 6: Final answer
   x = 10,372.00