Finding the Fourth Proportional to 9,021.56, 12,448.56 and 5,042.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,021.56 : 12,448.56 = 5,042.18 : x
2. Step 2: Convert to fraction form
   9,021.56/12,448.56 = 5,042.18/x
3. Step 3: Cross multiply
   9,021.56x = 12,448.56 × 5,042.18
4. Step 4: Simplify right side
   9,021.56x = 62,767,880.26
5. Step 5: Solve for x
   x = 62,767,880.26/9,021.56
6. Step 6: Final answer
   x = 6,957.54