Finding the Fourth Proportional to 10,964.58, 16,449.30 and 5,118

Step by Step Solution

1. Step 1: Write the proportion equation
   10,964.58 : 16,449.30 = 5,118 : x
2. Step 2: Convert to fraction form
   10,964.58/16,449.30 = 5,118/x
3. Step 3: Cross multiply
   10,964.58x = 16,449.30 × 5,118
4. Step 4: Simplify right side
   10,964.58x = 84,187,517.40
5. Step 5: Solve for x
   x = 84,187,517.40/10,964.58
6. Step 6: Final answer
   x = 7,678.13