Finding the Fourth Proportional to 9,563.30, 14,345.36 and 2,989.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,563.30 : 14,345.36 = 2,989.61 : x
2. Step 2: Convert to fraction form
   9,563.30/14,345.36 = 2,989.61/x
3. Step 3: Cross multiply
   9,563.30x = 14,345.36 × 2,989.61
4. Step 4: Simplify right side
   9,563.30x = 42,887,016.76
5. Step 5: Solve for x
   x = 42,887,016.76/9,563.30
6. Step 6: Final answer
   x = 4,484.54