Finding the Fourth Proportional to 10,036.86, 15,078.36 and 7,082.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,036.86 : 15,078.36 = 7,082.10 : x
2. Step 2: Convert to fraction form
   10,036.86/15,078.36 = 7,082.10/x
3. Step 3: Cross multiply
   10,036.86x = 15,078.36 × 7,082.10
4. Step 4: Simplify right side
   10,036.86x = 106,786,453.36
5. Step 5: Solve for x
   x = 106,786,453.36/10,036.86
6. Step 6: Final answer
   x = 10,639.43