Finding the Fourth Proportional to 9,582.71, 13,231.35 and 9,429.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,582.71 : 13,231.35 = 9,429.62 : x
2. Step 2: Convert to fraction form
   9,582.71/13,231.35 = 9,429.62/x
3. Step 3: Cross multiply
   9,582.71x = 13,231.35 × 9,429.62
4. Step 4: Simplify right side
   9,582.71x = 124,766,536.43
5. Step 5: Solve for x
   x = 124,766,536.43/9,582.71
6. Step 6: Final answer
   x = 13,019.97