Finding the Fourth Proportional to 12,556.76, 17,326.56 and 7,519.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,556.76 : 17,326.56 = 7,519.80 : x
2. Step 2: Convert to fraction form
   12,556.76/17,326.56 = 7,519.80/x
3. Step 3: Cross multiply
   12,556.76x = 17,326.56 × 7,519.80
4. Step 4: Simplify right side
   12,556.76x = 130,292,265.89
5. Step 5: Solve for x
   x = 130,292,265.89/12,556.76
6. Step 6: Final answer
   x = 10,376.26