Finding the Fourth Proportional to 9,211.89, 12,712.47 and 5,020.14

Step by Step Solution

1. Step 1: Write the proportion equation
   9,211.89 : 12,712.47 = 5,020.14 : x
2. Step 2: Convert to fraction form
   9,211.89/12,712.47 = 5,020.14/x
3. Step 3: Cross multiply
   9,211.89x = 12,712.47 × 5,020.14
4. Step 4: Simplify right side
   9,211.89x = 63,818,379.15
5. Step 5: Solve for x
   x = 63,818,379.15/9,211.89
6. Step 6: Final answer
   x = 6,927.83