Finding the Fourth Proportional to 12,593.31, 17,379.35 and 7,287.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,593.31 : 17,379.35 = 7,287.09 : x
2. Step 2: Convert to fraction form
   12,593.31/17,379.35 = 7,287.09/x
3. Step 3: Cross multiply
   12,593.31x = 17,379.35 × 7,287.09
4. Step 4: Simplify right side
   12,593.31x = 126,644,887.59
5. Step 5: Solve for x
   x = 126,644,887.59/12,593.31
6. Step 6: Final answer
   x = 10,056.52