Finding the Fourth Proportional to 12,657.56, 17,461.82 and 8,181.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,657.56 : 17,461.82 = 8,181.69 : x
2. Step 2: Convert to fraction form
   12,657.56/17,461.82 = 8,181.69/x
3. Step 3: Cross multiply
   12,657.56x = 17,461.82 × 8,181.69
4. Step 4: Simplify right side
   12,657.56x = 142,867,157.17
5. Step 5: Solve for x
   x = 142,867,157.17/12,657.56
6. Step 6: Final answer
   x = 11,287.11