Finding the Fourth Proportional to 9,725.32, 13,419.98 and 5,745.66

Step by Step Solution

1. Step 1: Write the proportion equation
   9,725.32 : 13,419.98 = 5,745.66 : x
2. Step 2: Convert to fraction form
   9,725.32/13,419.98 = 5,745.66/x
3. Step 3: Cross multiply
   9,725.32x = 13,419.98 × 5,745.66
4. Step 4: Simplify right side
   9,725.32x = 77,106,622.52
5. Step 5: Solve for x
   x = 77,106,622.52/9,725.32
6. Step 6: Final answer
   x = 7,928.44