Finding the Fourth Proportional to 14,253.42, 19,667.79 and 7,964.94

Step by Step Solution

1. Step 1: Write the proportion equation
   14,253.42 : 19,667.79 = 7,964.94 : x
2. Step 2: Convert to fraction form
   14,253.42/19,667.79 = 7,964.94/x
3. Step 3: Cross multiply
   14,253.42x = 19,667.79 × 7,964.94
4. Step 4: Simplify right side
   14,253.42x = 156,652,767.28
5. Step 5: Solve for x
   x = 156,652,767.28/14,253.42
6. Step 6: Final answer
   x = 10,990.54