Finding the Fourth Proportional to 12,656.34, 17,459.90 and 8,181.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,656.34 : 17,459.90 = 8,181.52 : x
2. Step 2: Convert to fraction form
   12,656.34/17,459.90 = 8,181.52/x
3. Step 3: Cross multiply
   12,656.34x = 17,459.90 × 8,181.52
4. Step 4: Simplify right side
   12,656.34x = 142,848,521.05
5. Step 5: Solve for x
   x = 142,848,521.05/12,656.34
6. Step 6: Final answer
   x = 11,286.72