Finding the Fourth Proportional to 9,965.65, 14,920.79 and 5,020.29

Step by Step Solution

1. Step 1: Write the proportion equation
   9,965.65 : 14,920.79 = 5,020.29 : x
2. Step 2: Convert to fraction form
   9,965.65/14,920.79 = 5,020.29/x
3. Step 3: Cross multiply
   9,965.65x = 14,920.79 × 5,020.29
4. Step 4: Simplify right side
   9,965.65x = 74,906,667.73
5. Step 5: Solve for x
   x = 74,906,667.73/9,965.65
6. Step 6: Final answer
   x = 7,516.49