Finding the Fourth Proportional to 14,245.56, 19,658.16 and 7,956.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,245.56 : 19,658.16 = 7,956.72 : x
2. Step 2: Convert to fraction form
   14,245.56/19,658.16 = 7,956.72/x
3. Step 3: Cross multiply
   14,245.56x = 19,658.16 × 7,956.72
4. Step 4: Simplify right side
   14,245.56x = 156,414,474.84
5. Step 5: Solve for x
   x = 156,414,474.84/14,245.56
6. Step 6: Final answer
   x = 10,979.88