Finding the Fourth Proportional to 10,249.91, 14,146.23 and 5,774.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,249.91 : 14,146.23 = 5,774.55 : x
2. Step 2: Convert to fraction form
   10,249.91/14,146.23 = 5,774.55/x
3. Step 3: Cross multiply
   10,249.91x = 14,146.23 × 5,774.55
4. Step 4: Simplify right side
   10,249.91x = 81,688,112.45
5. Step 5: Solve for x
   x = 81,688,112.45/10,249.91
6. Step 6: Final answer
   x = 7,969.64