Finding the Fourth Proportional to 10,003.18, 13,806.31 and 5,757.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,003.18 : 13,806.31 = 5,757.06 : x
2. Step 2: Convert to fraction form
   10,003.18/13,806.31 = 5,757.06/x
3. Step 3: Cross multiply
   10,003.18x = 13,806.31 × 5,757.06
4. Step 4: Simplify right side
   10,003.18x = 79,483,755.05
5. Step 5: Solve for x
   x = 79,483,755.05/10,003.18
6. Step 6: Final answer
   x = 7,945.85