Finding the Fourth Proportional to 10,245.81, 14,138.04 and 5,769.45

Step by Step Solution

1. Step 1: Write the proportion equation
   10,245.81 : 14,138.04 = 5,769.45 : x
2. Step 2: Convert to fraction form
   10,245.81/14,138.04 = 5,769.45/x
3. Step 3: Cross multiply
   10,245.81x = 14,138.04 × 5,769.45
4. Step 4: Simplify right side
   10,245.81x = 81,568,714.88
5. Step 5: Solve for x
   x = 81,568,714.88/10,245.81
6. Step 6: Final answer
   x = 7,961.18