Finding the Fourth Proportional to 8,741.28, 13,111.72 and 2,167.36

Step by Step Solution

1. Step 1: Write the proportion equation
   8,741.28 : 13,111.72 = 2,167.36 : x
2. Step 2: Convert to fraction form
   8,741.28/13,111.72 = 2,167.36/x
3. Step 3: Cross multiply
   8,741.28x = 13,111.72 × 2,167.36
4. Step 4: Simplify right side
   8,741.28x = 28,417,817.46
5. Step 5: Solve for x
   x = 28,417,817.46/8,741.28
6. Step 6: Final answer
   x = 3,250.99