Finding the Fourth Proportional to 9,085.10, 12,732.10 and 9,085.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,085.10 : 12,732.10 = 9,085.10 : x
2. Step 2: Convert to fraction form
   9,085.10/12,732.10 = 9,085.10/x
3. Step 3: Cross multiply
   9,085.10x = 12,732.10 × 9,085.10
4. Step 4: Simplify right side
   9,085.10x = 115,672,401.71
5. Step 5: Solve for x
   x = 115,672,401.71/9,085.10
6. Step 6: Final answer
   x = 12,732.10