Finding the Fourth Proportional to 10,729.24, 16,089.30 and 4,889.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,729.24 : 16,089.30 = 4,889.56 : x
2. Step 2: Convert to fraction form
   10,729.24/16,089.30 = 4,889.56/x
3. Step 3: Cross multiply
   10,729.24x = 16,089.30 × 4,889.56
4. Step 4: Simplify right side
   10,729.24x = 78,669,597.71
5. Step 5: Solve for x
   x = 78,669,597.71/10,729.24
6. Step 6: Final answer
   x = 7,332.26