Finding the Fourth Proportional to 12,976.25, 17,907.25 and 7,387.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,976.25 : 17,907.25 = 7,387.25 : x
2. Step 2: Convert to fraction form
   12,976.25/17,907.25 = 7,387.25/x
3. Step 3: Cross multiply
   12,976.25x = 17,907.25 × 7,387.25
4. Step 4: Simplify right side
   12,976.25x = 132,285,332.56
5. Step 5: Solve for x
   x = 132,285,332.56/12,976.25
6. Step 6: Final answer
   x = 10,194.42