Finding the Fourth Proportional to 10,245.69, 14,138.91 and 5,769.49

Step by Step Solution

1. Step 1: Write the proportion equation
   10,245.69 : 14,138.91 = 5,769.49 : x
2. Step 2: Convert to fraction form
   10,245.69/14,138.91 = 5,769.49/x
3. Step 3: Cross multiply
   10,245.69x = 14,138.91 × 5,769.49
4. Step 4: Simplify right side
   10,245.69x = 81,574,278.22
5. Step 5: Solve for x
   x = 81,574,278.22/10,245.69
6. Step 6: Final answer
   x = 7,961.82