Finding the Fourth Proportional to 10,245.94, 14,139.25 and 5,769.74

Step by Step Solution

1. Step 1: Write the proportion equation
   10,245.94 : 14,139.25 = 5,769.74 : x
2. Step 2: Convert to fraction form
   10,245.94/14,139.25 = 5,769.74/x
3. Step 3: Cross multiply
   10,245.94x = 14,139.25 × 5,769.74
4. Step 4: Simplify right side
   10,245.94x = 81,579,796.30
5. Step 5: Solve for x
   x = 81,579,796.30/10,245.94
6. Step 6: Final answer
   x = 7,962.16