Finding the Fourth Proportional to 9,212.56, 12,713.64 and 5,020.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,212.56 : 12,713.64 = 5,020.96 : x
2. Step 2: Convert to fraction form
   9,212.56/12,713.64 = 5,020.96/x
3. Step 3: Cross multiply
   9,212.56x = 12,713.64 × 5,020.96
4. Step 4: Simplify right side
   9,212.56x = 63,834,677.89
5. Step 5: Solve for x
   x = 63,834,677.89/9,212.56
6. Step 6: Final answer
   x = 6,929.09