Finding the Fourth Proportional to 9,021.05, 12,449.32 and 5,042.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,021.05 : 12,449.32 = 5,042.18 : x
2. Step 2: Convert to fraction form
   9,021.05/12,449.32 = 5,042.18/x
3. Step 3: Cross multiply
   9,021.05x = 12,449.32 × 5,042.18
4. Step 4: Simplify right side
   9,021.05x = 62,771,637.47
5. Step 5: Solve for x
   x = 62,771,637.47/9,021.05
6. Step 6: Final answer
   x = 6,958.35