Finding the Fourth Proportional to 12,995.56, 17,934.90 and 7,406.44

Step by Step Solution

1. Step 1: Write the proportion equation
   12,995.56 : 17,934.90 = 7,406.44 : x
2. Step 2: Convert to fraction form
   12,995.56/17,934.90 = 7,406.44/x
3. Step 3: Cross multiply
   12,995.56x = 17,934.90 × 7,406.44
4. Step 4: Simplify right side
   12,995.56x = 132,833,760.76
5. Step 5: Solve for x
   x = 132,833,760.76/12,995.56
6. Step 6: Final answer
   x = 10,221.47