Finding the Fourth Proportional to 5,142.95, 7,097.69 and 2,905.37

Step by Step Solution

1. Step 1: Write the proportion equation
   5,142.95 : 7,097.69 = 2,905.37 : x
2. Step 2: Convert to fraction form
   5,142.95/7,097.69 = 2,905.37/x
3. Step 3: Cross multiply
   5,142.95x = 7,097.69 × 2,905.37
4. Step 4: Simplify right side
   5,142.95x = 20,621,401.07
5. Step 5: Solve for x
   x = 20,621,401.07/5,142.95
6. Step 6: Final answer
   x = 4,009.64