Finding the Fourth Proportional to 12,846.28, 17,727.30 and 7,181

Step by Step Solution

1. Step 1: Write the proportion equation
   12,846.28 : 17,727.30 = 7,181 : x
2. Step 2: Convert to fraction form
   12,846.28/17,727.30 = 7,181/x
3. Step 3: Cross multiply
   12,846.28x = 17,727.30 × 7,181
4. Step 4: Simplify right side
   12,846.28x = 127,299,741.30
5. Step 5: Solve for x
   x = 127,299,741.30/12,846.28
6. Step 6: Final answer
   x = 9,909.46