Finding the Fourth Proportional to 10,245.02, 14,138.13 and 5,768.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,245.02 : 14,138.13 = 5,768.78 : x
2. Step 2: Convert to fraction form
   10,245.02/14,138.13 = 5,768.78/x
3. Step 3: Cross multiply
   10,245.02x = 14,138.13 × 5,768.78
4. Step 4: Simplify right side
   10,245.02x = 81,559,761.58
5. Step 5: Solve for x
   x = 81,559,761.58/10,245.02
6. Step 6: Final answer
   x = 7,960.92