Finding the Fourth Proportional to 9,940.50, 13,717.89 and 5,748.75

Step by Step Solution

1. Step 1: Write the proportion equation
   9,940.50 : 13,717.89 = 5,748.75 : x
2. Step 2: Convert to fraction form
   9,940.50/13,717.89 = 5,748.75/x
3. Step 3: Cross multiply
   9,940.50x = 13,717.89 × 5,748.75
4. Step 4: Simplify right side
   9,940.50x = 78,860,720.14
5. Step 5: Solve for x
   x = 78,860,720.14/9,940.50
6. Step 6: Final answer
   x = 7,933.28