Finding the Fourth Proportional to 10,628.62, 14,667.45 and 5,912.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,628.62 : 14,667.45 = 5,912.89 : x
2. Step 2: Convert to fraction form
   10,628.62/14,667.45 = 5,912.89/x
3. Step 3: Cross multiply
   10,628.62x = 14,667.45 × 5,912.89
4. Step 4: Simplify right side
   10,628.62x = 86,727,018.43
5. Step 5: Solve for x
   x = 86,727,018.43/10,628.62
6. Step 6: Final answer
   x = 8,159.76