Finding the Fourth Proportional to 9,553.30, 14,322.78 and 3,311.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,553.30 : 14,322.78 = 3,311.12 : x
2. Step 2: Convert to fraction form
   9,553.30/14,322.78 = 3,311.12/x
3. Step 3: Cross multiply
   9,553.30x = 14,322.78 × 3,311.12
4. Step 4: Simplify right side
   9,553.30x = 47,424,443.31
5. Step 5: Solve for x
   x = 47,424,443.31/9,553.30
6. Step 6: Final answer
   x = 4,964.19