Finding the Fourth Proportional to 10,013.31, 15,022.98 and 2,993.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,013.31 : 15,022.98 = 2,993.55 : x
2. Step 2: Convert to fraction form
   10,013.31/15,022.98 = 2,993.55/x
3. Step 3: Cross multiply
   10,013.31x = 15,022.98 × 2,993.55
4. Step 4: Simplify right side
   10,013.31x = 44,972,112.20
5. Step 5: Solve for x
   x = 44,972,112.20/10,013.31
6. Step 6: Final answer
   x = 4,491.23