Finding the Fourth Proportional to 9,945.10, 13,724.06 and 5,468.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,945.10 : 13,724.06 = 5,468.80 : x
2. Step 2: Convert to fraction form
   9,945.10/13,724.06 = 5,468.80/x
3. Step 3: Cross multiply
   9,945.10x = 13,724.06 × 5,468.80
4. Step 4: Simplify right side
   9,945.10x = 75,054,139.33
5. Step 5: Solve for x
   x = 75,054,139.33/9,945.10
6. Step 6: Final answer
   x = 7,546.85