Finding the Fourth Proportional to 10,951.13, 16,422.43 and 3,553.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,951.13 : 16,422.43 = 3,553.80 : x
2. Step 2: Convert to fraction form
   10,951.13/16,422.43 = 3,553.80/x
3. Step 3: Cross multiply
   10,951.13x = 16,422.43 × 3,553.80
4. Step 4: Simplify right side
   10,951.13x = 58,362,031.73
5. Step 5: Solve for x
   x = 58,362,031.73/10,951.13
6. Step 6: Final answer
   x = 5,329.32