Finding the Fourth Proportional to 9,643.25, 13,308.78 and 5,451.77

Step by Step Solution

1. Step 1: Write the proportion equation
   9,643.25 : 13,308.78 = 5,451.77 : x
2. Step 2: Convert to fraction form
   9,643.25/13,308.78 = 5,451.77/x
3. Step 3: Cross multiply
   9,643.25x = 13,308.78 × 5,451.77
4. Step 4: Simplify right side
   9,643.25x = 72,556,407.54
5. Step 5: Solve for x
   x = 72,556,407.54/9,643.25
6. Step 6: Final answer
   x = 7,524.06