Finding the Fourth Proportional to 10,272.16, 14,175.55 and 5,556.43

Step by Step Solution

1. Step 1: Write the proportion equation
   10,272.16 : 14,175.55 = 5,556.43 : x
2. Step 2: Convert to fraction form
   10,272.16/14,175.55 = 5,556.43/x
3. Step 3: Cross multiply
   10,272.16x = 14,175.55 × 5,556.43
4. Step 4: Simplify right side
   10,272.16x = 78,765,451.29
5. Step 5: Solve for x
   x = 78,765,451.29/10,272.16
6. Step 6: Final answer
   x = 7,667.86