Finding the Fourth Proportional to 14,251.99, 19,667.72 and 7,964.37

Step by Step Solution

1. Step 1: Write the proportion equation
   14,251.99 : 19,667.72 = 7,964.37 : x
2. Step 2: Convert to fraction form
   14,251.99/19,667.72 = 7,964.37/x
3. Step 3: Cross multiply
   14,251.99x = 19,667.72 × 7,964.37
4. Step 4: Simplify right side
   14,251.99x = 156,640,860.98
5. Step 5: Solve for x
   x = 156,640,860.98/14,251.99
6. Step 6: Final answer
   x = 10,990.81