Finding the Fourth Proportional to 14,340.68, 19,789.50 and 7,967.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,340.68 : 19,789.50 = 7,967.72 : x
2. Step 2: Convert to fraction form
   14,340.68/19,789.50 = 7,967.72/x
3. Step 3: Cross multiply
   14,340.68x = 19,789.50 × 7,967.72
4. Step 4: Simplify right side
   14,340.68x = 157,677,194.94
5. Step 5: Solve for x
   x = 157,677,194.94/14,340.68
6. Step 6: Final answer
   x = 10,995.10