Finding the Fourth Proportional to 9,476.45, 13,061.82 and 8,682.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,476.45 : 13,061.82 = 8,682.31 : x
2. Step 2: Convert to fraction form
   9,476.45/13,061.82 = 8,682.31/x
3. Step 3: Cross multiply
   9,476.45x = 13,061.82 × 8,682.31
4. Step 4: Simplify right side
   9,476.45x = 113,406,770.40
5. Step 5: Solve for x
   x = 113,406,770.40/9,476.45
6. Step 6: Final answer
   x = 11,967.22