Finding the Fourth Proportional to 5,111.10, 7,667.73 and 2,771.01

Step by Step Solution

1. Step 1: Write the proportion equation
   5,111.10 : 7,667.73 = 2,771.01 : x
2. Step 2: Convert to fraction form
   5,111.10/7,667.73 = 2,771.01/x
3. Step 3: Cross multiply
   5,111.10x = 7,667.73 × 2,771.01
4. Step 4: Simplify right side
   5,111.10x = 21,247,356.51
5. Step 5: Solve for x
   x = 21,247,356.51/5,111.10
6. Step 6: Final answer
   x = 4,157.10