Finding the Fourth Proportional to 9,021.31, 12,449.17 and 5,042.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,021.31 : 12,449.17 = 5,042.46 : x
2. Step 2: Convert to fraction form
   9,021.31/12,449.17 = 5,042.46/x
3. Step 3: Cross multiply
   9,021.31x = 12,449.17 × 5,042.46
4. Step 4: Simplify right side
   9,021.31x = 62,774,441.76
5. Step 5: Solve for x
   x = 62,774,441.76/9,021.31
6. Step 6: Final answer
   x = 6,958.46