Finding the Fourth Proportional to 9,643.56, 13,310.58 and 5,454.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,643.56 : 13,310.58 = 5,454.12 : x
2. Step 2: Convert to fraction form
   9,643.56/13,310.58 = 5,454.12/x
3. Step 3: Cross multiply
   9,643.56x = 13,310.58 × 5,454.12
4. Step 4: Simplify right side
   9,643.56x = 72,597,500.59
5. Step 5: Solve for x
   x = 72,597,500.59/9,643.56
6. Step 6: Final answer
   x = 7,528.08