Finding the Fourth Proportional to 11,808.72, 17,693.28 and 7,182

Step by Step Solution

1. Step 1: Write the proportion equation
   11,808.72 : 17,693.28 = 7,182 : x
2. Step 2: Convert to fraction form
   11,808.72/17,693.28 = 7,182/x
3. Step 3: Cross multiply
   11,808.72x = 17,693.28 × 7,182
4. Step 4: Simplify right side
   11,808.72x = 127,073,136.96
5. Step 5: Solve for x
   x = 127,073,136.96/11,808.72
6. Step 6: Final answer
   x = 10,760.96