Finding the Fourth Proportional to 5,015.51, 7,514.45 and 2,670.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,015.51 : 7,514.45 = 2,670.56 : x
2. Step 2: Convert to fraction form
   5,015.51/7,514.45 = 2,670.56/x
3. Step 3: Cross multiply
   5,015.51x = 7,514.45 × 2,670.56
4. Step 4: Simplify right side
   5,015.51x = 20,067,789.59
5. Step 5: Solve for x
   x = 20,067,789.59/5,015.51
6. Step 6: Final answer
   x = 4,001.15