Finding the Fourth Proportional to 10,955.58, 16,431.69 and 3,559.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,955.58 : 16,431.69 = 3,559.98 : x
2. Step 2: Convert to fraction form
   10,955.58/16,431.69 = 3,559.98/x
3. Step 3: Cross multiply
   10,955.58x = 16,431.69 × 3,559.98
4. Step 4: Simplify right side
   10,955.58x = 58,496,487.77
5. Step 5: Solve for x
   x = 58,496,487.77/10,955.58
6. Step 6: Final answer
   x = 5,339.42