Finding the Fourth Proportional to 9,945.32, 13,724.85 and 5,469.26

Step by Step Solution

1. Step 1: Write the proportion equation
   9,945.32 : 13,724.85 = 5,469.26 : x
2. Step 2: Convert to fraction form
   9,945.32/13,724.85 = 5,469.26/x
3. Step 3: Cross multiply
   9,945.32x = 13,724.85 × 5,469.26
4. Step 4: Simplify right side
   9,945.32x = 75,064,773.11
5. Step 5: Solve for x
   x = 75,064,773.11/9,945.32
6. Step 6: Final answer
   x = 7,547.75