Finding the Fourth Proportional to 6,859.98, 10,274.34 and 5,369.91

Step by Step Solution

1. Step 1: Write the proportion equation
   6,859.98 : 10,274.34 = 5,369.91 : x
2. Step 2: Convert to fraction form
   6,859.98/10,274.34 = 5,369.91/x
3. Step 3: Cross multiply
   6,859.98x = 10,274.34 × 5,369.91
4. Step 4: Simplify right side
   6,859.98x = 55,172,281.11
5. Step 5: Solve for x
   x = 55,172,281.11/6,859.98
6. Step 6: Final answer
   x = 8,042.63