Finding the Fourth Proportional to 10,272.51, 14,176.10 and 5,556.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,272.51 : 14,176.10 = 5,556.80 : x
2. Step 2: Convert to fraction form
   10,272.51/14,176.10 = 5,556.80/x
3. Step 3: Cross multiply
   10,272.51x = 14,176.10 × 5,556.80
4. Step 4: Simplify right side
   10,272.51x = 78,773,653.82
5. Step 5: Solve for x
   x = 78,773,653.82/10,272.51
6. Step 6: Final answer
   x = 7,668.39