Finding the Fourth Proportional to 9,559.30, 14,339.37 and 2,985.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,559.30 : 14,339.37 = 2,985.61 : x
2. Step 2: Convert to fraction form
   9,559.30/14,339.37 = 2,985.61/x
3. Step 3: Cross multiply
   9,559.30x = 14,339.37 × 2,985.61
4. Step 4: Simplify right side
   9,559.30x = 42,811,766.47
5. Step 5: Solve for x
   x = 42,811,766.47/9,559.30
6. Step 6: Final answer
   x = 4,478.55