Finding the Fourth Proportional to 10,973.72, 16,458.96 and 4,399.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,973.72 : 16,458.96 = 4,399.76 : x
2. Step 2: Convert to fraction form
   10,973.72/16,458.96 = 4,399.76/x
3. Step 3: Cross multiply
   10,973.72x = 16,458.96 × 4,399.76
4. Step 4: Simplify right side
   10,973.72x = 72,415,473.85
5. Step 5: Solve for x
   x = 72,415,473.85/10,973.72
6. Step 6: Final answer
   x = 6,598.99