Finding the Fourth Proportional to 9,061.38, 12,504.78 and 5,082.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,061.38 : 12,504.78 = 5,082.57 : x
2. Step 2: Convert to fraction form
   9,061.38/12,504.78 = 5,082.57/x
3. Step 3: Cross multiply
   9,061.38x = 12,504.78 × 5,082.57
4. Step 4: Simplify right side
   9,061.38x = 63,556,419.68
5. Step 5: Solve for x
   x = 63,556,419.68/9,061.38
6. Step 6: Final answer
   x = 7,013.99