Finding the Fourth Proportional to 9,969.92, 13,757.94 and 5,492.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,969.92 : 13,757.94 = 5,492.80 : x
2. Step 2: Convert to fraction form
   9,969.92/13,757.94 = 5,492.80/x
3. Step 3: Cross multiply
   9,969.92x = 13,757.94 × 5,492.80
4. Step 4: Simplify right side
   9,969.92x = 75,569,612.83
5. Step 5: Solve for x
   x = 75,569,612.83/9,969.92
6. Step 6: Final answer
   x = 7,579.76