Finding the Fourth Proportional to 13,096.14, 18,072.72 and 7,127.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,096.14 : 18,072.72 = 7,127.88 : x
2. Step 2: Convert to fraction form
   13,096.14/18,072.72 = 7,127.88/x
3. Step 3: Cross multiply
   13,096.14x = 18,072.72 × 7,127.88
4. Step 4: Simplify right side
   13,096.14x = 128,820,179.43
5. Step 5: Solve for x
   x = 128,820,179.43/13,096.14
6. Step 6: Final answer
   x = 9,836.50