Finding the Fourth Proportional to 10,976.56, 16,474.42 and 9,729.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,976.56 : 16,474.42 = 9,729.98 : x
2. Step 2: Convert to fraction form
   10,976.56/16,474.42 = 9,729.98/x
3. Step 3: Cross multiply
   10,976.56x = 16,474.42 × 9,729.98
4. Step 4: Simplify right side
   10,976.56x = 160,295,777.11
5. Step 5: Solve for x
   x = 160,295,777.11/10,976.56
6. Step 6: Final answer
   x = 14,603.46