Finding the Fourth Proportional to 9,021.90, 12,449.88 and 5,042.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,021.90 : 12,449.88 = 5,042.82 : x
2. Step 2: Convert to fraction form
   9,021.90/12,449.88 = 5,042.82/x
3. Step 3: Cross multiply
   9,021.90x = 12,449.88 × 5,042.82
4. Step 4: Simplify right side
   9,021.90x = 62,782,503.86
5. Step 5: Solve for x
   x = 62,782,503.86/9,021.90
6. Step 6: Final answer
   x = 6,958.90