Finding the Fourth Proportional to 9,020.81, 12,448.77 and 5,042.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,020.81 : 12,448.77 = 5,042.09 : x
2. Step 2: Convert to fraction form
   9,020.81/12,448.77 = 5,042.09/x
3. Step 3: Cross multiply
   9,020.81x = 12,448.77 × 5,042.09
4. Step 4: Simplify right side
   9,020.81x = 62,767,818.73
5. Step 5: Solve for x
   x = 62,767,818.73/9,020.81
6. Step 6: Final answer
   x = 6,958.11