Finding the Fourth Proportional to 12,487.08, 17,233.89 and 7,181.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,487.08 : 17,233.89 = 7,181.76 : x
2. Step 2: Convert to fraction form
   12,487.08/17,233.89 = 7,181.76/x
3. Step 3: Cross multiply
   12,487.08x = 17,233.89 × 7,181.76
4. Step 4: Simplify right side
   12,487.08x = 123,769,661.85
5. Step 5: Solve for x
   x = 123,769,661.85/12,487.08
6. Step 6: Final answer
   x = 9,911.82