Finding the Fourth Proportional to 9,018.96, 12,446.46 and 5,040.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,018.96 : 12,446.46 = 5,040.30 : x
2. Step 2: Convert to fraction form
   9,018.96/12,446.46 = 5,040.30/x
3. Step 3: Cross multiply
   9,018.96x = 12,446.46 × 5,040.30
4. Step 4: Simplify right side
   9,018.96x = 62,733,892.34
5. Step 5: Solve for x
   x = 62,733,892.34/9,018.96
6. Step 6: Final answer
   x = 6,955.78