Finding the Fourth Proportional to 10,028.55, 13,839.91 and 5,552.79

Step by Step Solution

1. Step 1: Write the proportion equation
   10,028.55 : 13,839.91 = 5,552.79 : x
2. Step 2: Convert to fraction form
   10,028.55/13,839.91 = 5,552.79/x
3. Step 3: Cross multiply
   10,028.55x = 13,839.91 × 5,552.79
4. Step 4: Simplify right side
   10,028.55x = 76,850,158.81
5. Step 5: Solve for x
   x = 76,850,158.81/10,028.55
6. Step 6: Final answer
   x = 7,663.14