Finding the Fourth Proportional to 5,145.51, 7,100.73 and 2,907.34

Step by Step Solution

1. Step 1: Write the proportion equation
   5,145.51 : 7,100.73 = 2,907.34 : x
2. Step 2: Convert to fraction form
   5,145.51/7,100.73 = 2,907.34/x
3. Step 3: Cross multiply
   5,145.51x = 7,100.73 × 2,907.34
4. Step 4: Simplify right side
   5,145.51x = 20,644,236.36
5. Step 5: Solve for x
   x = 20,644,236.36/5,145.51
6. Step 6: Final answer
   x = 4,012.09