Finding the Fourth Proportional to 5,145.39, 7,100.46 and 2,907.27

Step by Step Solution

1. Step 1: Write the proportion equation
   5,145.39 : 7,100.46 = 2,907.27 : x
2. Step 2: Convert to fraction form
   5,145.39/7,100.46 = 2,907.27/x
3. Step 3: Cross multiply
   5,145.39x = 7,100.46 × 2,907.27
4. Step 4: Simplify right side
   5,145.39x = 20,642,954.34
5. Step 5: Solve for x
   x = 20,642,954.34/5,145.39
6. Step 6: Final answer
   x = 4,011.93