Finding the Fourth Proportional to 14,253.27, 19,667.30 and 7,964.43

Step by Step Solution

1. Step 1: Write the proportion equation
   14,253.27 : 19,667.30 = 7,964.43 : x
2. Step 2: Convert to fraction form
   14,253.27/19,667.30 = 7,964.43/x
3. Step 3: Cross multiply
   14,253.27x = 19,667.30 × 7,964.43
4. Step 4: Simplify right side
   14,253.27x = 156,638,834.14
5. Step 5: Solve for x
   x = 156,638,834.14/14,253.27
6. Step 6: Final answer
   x = 10,989.68