Finding the Fourth Proportional to 9,020.79, 12,448.80 and 5,042.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,020.79 : 12,448.80 = 5,042.07 : x
2. Step 2: Convert to fraction form
   9,020.79/12,448.80 = 5,042.07/x
3. Step 3: Cross multiply
   9,020.79x = 12,448.80 × 5,042.07
4. Step 4: Simplify right side
   9,020.79x = 62,767,721.02
5. Step 5: Solve for x
   x = 62,767,721.02/9,020.79
6. Step 6: Final answer
   x = 6,958.12