Finding the Fourth Proportional to 12,592.31, 17,377.97 and 7,286.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,592.31 : 17,377.97 = 7,286.09 : x
2. Step 2: Convert to fraction form
   12,592.31/17,377.97 = 7,286.09/x
3. Step 3: Cross multiply
   12,592.31x = 17,377.97 × 7,286.09
4. Step 4: Simplify right side
   12,592.31x = 126,617,460.45
5. Step 5: Solve for x
   x = 126,617,460.45/12,592.31
6. Step 6: Final answer
   x = 10,055.15