Finding the Fourth Proportional to 10,321.82, 15,439.34 and 9,573.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,321.82 : 15,439.34 = 9,573.98 : x
2. Step 2: Convert to fraction form
   10,321.82/15,439.34 = 9,573.98/x
3. Step 3: Cross multiply
   10,321.82x = 15,439.34 × 9,573.98
4. Step 4: Simplify right side
   10,321.82x = 147,815,932.37
5. Step 5: Solve for x
   x = 147,815,932.37/10,321.82
6. Step 6: Final answer
   x = 14,320.72