Finding the Fourth Proportional to 5,145.14, 7,100.27 and 2,906.90

Step by Step Solution

1. Step 1: Write the proportion equation
   5,145.14 : 7,100.27 = 2,906.90 : x
2. Step 2: Convert to fraction form
   5,145.14/7,100.27 = 2,906.90/x
3. Step 3: Cross multiply
   5,145.14x = 7,100.27 × 2,906.90
4. Step 4: Simplify right side
   5,145.14x = 20,639,724.83
5. Step 5: Solve for x
   x = 20,639,724.83/5,145.14
6. Step 6: Final answer
   x = 4,011.50