Finding the Fourth Proportional to 12,976.56, 17,908.56 and 7,387.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,976.56 : 17,908.56 = 7,387.56 : x
2. Step 2: Convert to fraction form
   12,976.56/17,908.56 = 7,387.56/x
3. Step 3: Cross multiply
   12,976.56x = 17,908.56 × 7,387.56
4. Step 4: Simplify right side
   12,976.56x = 132,300,561.51
5. Step 5: Solve for x
   x = 132,300,561.51/12,976.56
6. Step 6: Final answer
   x = 10,195.35