Finding the Fourth Proportional to 9,969.75, 13,757.63 and 5,492.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,969.75 : 13,757.63 = 5,492.79 : x
2. Step 2: Convert to fraction form
   9,969.75/13,757.63 = 5,492.79/x
3. Step 3: Cross multiply
   9,969.75x = 13,757.63 × 5,492.79
4. Step 4: Simplify right side
   9,969.75x = 75,567,745.02
5. Step 5: Solve for x
   x = 75,567,745.02/9,969.75
6. Step 6: Final answer
   x = 7,579.70