Finding the Fourth Proportional to 11,749.05, 16,213.89 and 6,443.82

Step by Step Solution

1. Step 1: Write the proportion equation
   11,749.05 : 16,213.89 = 6,443.82 : x
2. Step 2: Convert to fraction form
   11,749.05/16,213.89 = 6,443.82/x
3. Step 3: Cross multiply
   11,749.05x = 16,213.89 × 6,443.82
4. Step 4: Simplify right side
   11,749.05x = 104,479,388.66
5. Step 5: Solve for x
   x = 104,479,388.66/11,749.05
6. Step 6: Final answer
   x = 8,892.58