Finding the Fourth Proportional to 9,019.31, 12,446.41 and 5,040.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,019.31 : 12,446.41 = 5,040.46 : x
2. Step 2: Convert to fraction form
   9,019.31/12,446.41 = 5,040.46/x
3. Step 3: Cross multiply
   9,019.31x = 12,446.41 × 5,040.46
4. Step 4: Simplify right side
   9,019.31x = 62,735,631.75
5. Step 5: Solve for x
   x = 62,735,631.75/9,019.31
6. Step 6: Final answer
   x = 6,955.70