Finding the Fourth Proportional to 12,404.41, 17,113.34 and 9,181.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,404.41 : 17,113.34 = 9,181.89 : x
2. Step 2: Convert to fraction form
   12,404.41/17,113.34 = 9,181.89/x
3. Step 3: Cross multiply
   12,404.41x = 17,113.34 × 9,181.89
4. Step 4: Simplify right side
   12,404.41x = 157,132,828.37
5. Step 5: Solve for x
   x = 157,132,828.37/12,404.41
6. Step 6: Final answer
   x = 12,667.50