Finding the Fourth Proportional to 5,111.35, 7,053.30 and 2,873.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,111.35 : 7,053.30 = 2,873.56 : x
2. Step 2: Convert to fraction form
   5,111.35/7,053.30 = 2,873.56/x
3. Step 3: Cross multiply
   5,111.35x = 7,053.30 × 2,873.56
4. Step 4: Simplify right side
   5,111.35x = 20,268,080.75
5. Step 5: Solve for x
   x = 20,268,080.75/5,111.35
6. Step 6: Final answer
   x = 3,965.31