Finding the Fourth Proportional to 9,647.64, 13,314.42 and 5,455.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,647.64 : 13,314.42 = 5,455.92 : x
2. Step 2: Convert to fraction form
   9,647.64/13,314.42 = 5,455.92/x
3. Step 3: Cross multiply
   9,647.64x = 13,314.42 × 5,455.92
4. Step 4: Simplify right side
   9,647.64x = 72,642,410.37
5. Step 5: Solve for x
   x = 72,642,410.37/9,647.64
6. Step 6: Final answer
   x = 7,529.55