Finding the Fourth Proportional to 14,243.89, 19,656.99 and 7,956.13

Step by Step Solution

1. Step 1: Write the proportion equation
   14,243.89 : 19,656.99 = 7,956.13 : x
2. Step 2: Convert to fraction form
   14,243.89/19,656.99 = 7,956.13/x
3. Step 3: Cross multiply
   14,243.89x = 19,656.99 × 7,956.13
4. Step 4: Simplify right side
   14,243.89x = 156,393,429.78
5. Step 5: Solve for x
   x = 156,393,429.78/14,243.89
6. Step 6: Final answer
   x = 10,979.69