Finding the Fourth Proportional to 12,047.52, 16,643.90 and 9,630.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,047.52 : 16,643.90 = 9,630.12 : x
2. Step 2: Convert to fraction form
   12,047.52/16,643.90 = 9,630.12/x
3. Step 3: Cross multiply
   12,047.52x = 16,643.90 × 9,630.12
4. Step 4: Simplify right side
   12,047.52x = 160,282,754.27
5. Step 5: Solve for x
   x = 160,282,754.27/12,047.52
6. Step 6: Final answer
   x = 13,304.21