Finding the Fourth Proportional to 10,954.41, 16,434.21 and 3,558.87

Step by Step Solution

1. Step 1: Write the proportion equation
   10,954.41 : 16,434.21 = 3,558.87 : x
2. Step 2: Convert to fraction form
   10,954.41/16,434.21 = 3,558.87/x
3. Step 3: Cross multiply
   10,954.41x = 16,434.21 × 3,558.87
4. Step 4: Simplify right side
   10,954.41x = 58,487,216.94
5. Step 5: Solve for x
   x = 58,487,216.94/10,954.41
6. Step 6: Final answer
   x = 5,339.15