Finding the Fourth Proportional to 7,186.80, 10,775.89 and 2,799.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,186.80 : 10,775.89 = 2,799.12 : x
2. Step 2: Convert to fraction form
   7,186.80/10,775.89 = 2,799.12/x
3. Step 3: Cross multiply
   7,186.80x = 10,775.89 × 2,799.12
4. Step 4: Simplify right side
   7,186.80x = 30,163,009.22
5. Step 5: Solve for x
   x = 30,163,009.22/7,186.80
6. Step 6: Final answer
   x = 4,197.00