Finding the Fourth Proportional to 10,272.18, 14,175.57 and 5,556.45

Step by Step Solution

1. Step 1: Write the proportion equation
   10,272.18 : 14,175.57 = 5,556.45 : x
2. Step 2: Convert to fraction form
   10,272.18/14,175.57 = 5,556.45/x
3. Step 3: Cross multiply
   10,272.18x = 14,175.57 × 5,556.45
4. Step 4: Simplify right side
   10,272.18x = 78,765,845.93
5. Step 5: Solve for x
   x = 78,765,845.93/10,272.18
6. Step 6: Final answer
   x = 7,667.88