Finding the Fourth Proportional to 10,505, 14,497.20 and 5,789.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,505 : 14,497.20 = 5,789.59 : x
2. Step 2: Convert to fraction form
   10,505/14,497.20 = 5,789.59/x
3. Step 3: Cross multiply
   10,505x = 14,497.20 × 5,789.59
4. Step 4: Simplify right side
   10,505x = 83,932,771.66
5. Step 5: Solve for x
   x = 83,932,771.66/10,505
6. Step 6: Final answer
   x = 7,989.79