Finding the Fourth Proportional to 5,898.24, 8,142.96 and 3,911.49

Step by Step Solution

1. Step 1: Write the proportion equation
   5,898.24 : 8,142.96 = 3,911.49 : x
2. Step 2: Convert to fraction form
   5,898.24/8,142.96 = 3,911.49/x
3. Step 3: Cross multiply
   5,898.24x = 8,142.96 × 3,911.49
4. Step 4: Simplify right side
   5,898.24x = 31,851,106.61
5. Step 5: Solve for x
   x = 31,851,106.61/5,898.24
6. Step 6: Final answer
   x = 5,400.10