Finding the Fourth Proportional to 12,488.82, 17,233.56 and 7,182.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,488.82 : 17,233.56 = 7,182.60 : x
2. Step 2: Convert to fraction form
   12,488.82/17,233.56 = 7,182.60/x
3. Step 3: Cross multiply
   12,488.82x = 17,233.56 × 7,182.60
4. Step 4: Simplify right side
   12,488.82x = 123,781,768.06
5. Step 5: Solve for x
   x = 123,781,768.06/12,488.82
6. Step 6: Final answer
   x = 9,911.41