Finding the Fourth Proportional to 5,111.30, 7,054.05 and 2,873.75

Step by Step Solution

1. Step 1: Write the proportion equation
   5,111.30 : 7,054.05 = 2,873.75 : x
2. Step 2: Convert to fraction form
   5,111.30/7,054.05 = 2,873.75/x
3. Step 3: Cross multiply
   5,111.30x = 7,054.05 × 2,873.75
4. Step 4: Simplify right side
   5,111.30x = 20,271,551.69
5. Step 5: Solve for x
   x = 20,271,551.69/5,111.30
6. Step 6: Final answer
   x = 3,966.02