Finding the Fourth Proportional to 10,028.81, 13,839.87 and 5,552.63

Step by Step Solution

1. Step 1: Write the proportion equation
   10,028.81 : 13,839.87 = 5,552.63 : x
2. Step 2: Convert to fraction form
   10,028.81/13,839.87 = 5,552.63/x
3. Step 3: Cross multiply
   10,028.81x = 13,839.87 × 5,552.63
4. Step 4: Simplify right side
   10,028.81x = 76,847,649.59
5. Step 5: Solve for x
   x = 76,847,649.59/10,028.81
6. Step 6: Final answer
   x = 7,662.69