Finding the Fourth Proportional to 9,076.10, 12,719.50 and 9,076.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,076.10 : 12,719.50 = 9,076.10 : x
2. Step 2: Convert to fraction form
   9,076.10/12,719.50 = 9,076.10/x
3. Step 3: Cross multiply
   9,076.10x = 12,719.50 × 9,076.10
4. Step 4: Simplify right side
   9,076.10x = 115,443,453.95
5. Step 5: Solve for x
   x = 115,443,453.95/9,076.10
6. Step 6: Final answer
   x = 12,719.50