Finding the Fourth Proportional to 8,066.40, 12,030.62 and 7,085.68

Step by Step Solution

1. Step 1: Write the proportion equation
   8,066.40 : 12,030.62 = 7,085.68 : x
2. Step 2: Convert to fraction form
   8,066.40/12,030.62 = 7,085.68/x
3. Step 3: Cross multiply
   8,066.40x = 12,030.62 × 7,085.68
4. Step 4: Simplify right side
   8,066.40x = 85,245,123.52
5. Step 5: Solve for x
   x = 85,245,123.52/8,066.40
6. Step 6: Final answer
   x = 10,567.93